Question and Answers Forum

AllQuestion and Answers: Page 1938

Question Number 9218 Answers: 0 Comments: 1

If sin A+sin B=a and cos A+cos B=b, then cos (A+B)=

$If \sin A + \sin B = a and \cos A + \cos B = b,$ $then \cos (A + B) =$

Question Number 9215 Answers: 1 Comments: 0

Question Number 9212 Answers: 1 Comments: 0

How much money will A gets when Rs. 2430 is divided among A, B and C such that if their shares be diminished by Rs. 5, Rs. 10, Rs. 15 respectively, the remainders shall be in the ratio 3 : 4 : 5.

$How much money will A gets when$ $Rs . 2430 is divided among$ $A, B and C such that if their shares be$ $diminished by Rs . 5, Rs . 10, Rs . 15$ $respectively, the remainders shall be$ $in the ratio 3 : 4 : 5 .$

Question Number 9211 Answers: 0 Comments: 0

If sinA + sinB = a tanA + tanB = b secA + secB = c Prove that, 8bc = a[4b^2 + (b^2 − c^2 )]^2

$If$ $sinA + sinB = a$ $tanA + tanB = b$ $secA + secB = c$ $Prove that,$ $8 bc = a {[{4 b}^{2} + (b^{2} - c^{2})]}^{2}$

Question Number 9209 Answers: 0 Comments: 1

Question Number 9204 Answers: 1 Comments: 0

Question Number 9203 Answers: 1 Comments: 0

The position of a point A is (41°N, 18°E) point B is 8000 km due west of A. Find the longitude of B to the nearest degree.

$The position of a point A is (41 ° N, 18 ° E)$ $point B is 8000 km due west of A . Find the$ $longitude of B to the nearest degree .$

Question Number 9201 Answers: 0 Comments: 3

∫x! dx = ?

$\int x! d x = ?$

Question Number 9199 Answers: 0 Comments: 2

If r^2 = (x + ea)^2 + y^2 and s^2 = (x − ea)^2 + y^2 and r + s = 2a, Prove that: r = a + ex, s = a − ex, and that, x^2 (1 − e^2 ) + y^2 = a^2 (1 − e^2 )

$If r^{2} = {(x + ea)}^{2} + y^{2} and s^{2} = {(x - ea)}^{2} + y^{2}$ $and r + s = 2 a, Prove that :$ $r = a + ex, s = a - ex, and that,$ $x^{2} (1 - e^{2}) + y^{2} = a^{2} (1 - e^{2})$

Question Number 9198 Answers: 0 Comments: 0

Can I copy a post or a part of it into the editor? or can I save a post so that I can edit it later?

$Can I copy a post or a part of it$ $into the editor ? or can I save a post$ $so that I can edit it later ?$

Question Number 9189 Answers: 1 Comments: 0

x+y+z=−6 xy+xz+yz=11 xyz=−6 then wbat are thd value of x yand z

$x + y + z = - 6$ $x y + x z + y z = 11$ $x y z = - 6$ $t h e n w b a t a r e t h d v a l u e o f x y a n d z$

Question Number 9188 Answers: 0 Comments: 0

Thanks!

$T h a n k s!$

Question Number 9187 Answers: 0 Comments: 0

Thanks!

$T h a n k s!$

Question Number 9172 Answers: 1 Comments: 1

The present age of a father and that of his son are in the ratio 7 : 1. After 4 years, the ratio will be 4 : 1. What is the son′s present age (in years) ?

$The present age of a father and that$ $of his son are in the ratio 7 : 1 . After$ $4 years, the ratio will be 4 : 1 . What$ $is the {son}^{'} s present age (in years) ?$

Question Number 9171 Answers: 1 Comments: 0

In a cricket team of 11, there 7 were atleast 20 years old and 8 were atmost 30 years old. The ages of how many were from 20 years to 30 years(both inclusive)?

$In a cricket team of 11, there 7 were$ $atleast 20 years old and 8 were atmost$ $30 years old . The ages of how many$ $were from 20 years to 30 years (both$ $inclusive) ?$

Question Number 9168 Answers: 1 Comments: 0

If all the sides of a hexagon is increased by 2%. Find the % increase in its area.

$If all the sides of a hexagon is increased$ $by 2 % . Find the % increase in its area .$

Question Number 9167 Answers: 0 Comments: 4

A can do a work in 10 days and B can do the same work in 15 days. How many days will they take if both work together?

$A can do a work in 10 days and B can$ $do the same work in 15 days . How$ $many days will they take if both work$ $together ?$

Question Number 9166 Answers: 1 Comments: 1

x^(831) + y^(831) is always divisible by

$x^{831} + y^{831} is always divisible by$

Question Number 9165 Answers: 0 Comments: 0

x^(831) + y^(831) is always divisible by

$x^{831} + y^{831} is always divisible by$

Question Number 9163 Answers: 0 Comments: 2

show that the ellipse with e = ((√5)/3), focus (0, 2) and directrix x = −((4(√5))/3) has the equation : (((x − (√5))^2 )/9) + (((y − 2)^2 )/4) = 1

$show that the ellipse with e = \frac{\sqrt{5}}{3},$ $focus (0, 2) and directrix x = - \frac{4 \sqrt{5}}{3}$ $has the equation : \frac{{(x - \sqrt{5})}^{2}}{9} + \frac{{(y - 2)}^{2}}{4} = 1$

Question Number 9161 Answers: 0 Comments: 2

Consider a rectangular plate of lamina density ρ = 0.025 whose mass is 5kg about an axis 3cm from one of its sides as shown below. using parallel axis theorem , find the moment of inertia about the xx axis and the radius of gyration.

$Consider a rectangular plate of lamina$ $density ρ = 0.025 whose mass is 5 kg about$ $an axis 3 cm from one of its sides as shown$ $below . using parallel axis theorem, find$ $the moment of inertia about the xx axis and$ $the radius of gyration .$

Question Number 9158 Answers: 1 Comments: 0

∫x^x dx = ?

$\int x^{x} d x = ?$

Question Number 9157 Answers: 1 Comments: 0

lim_(x→y) ((x^n − y^n )/(x − y))

$\lim_{x \to y} \frac{x^{n} - y^{n}}{x - y}$

Question Number 9149 Answers: 1 Comments: 0

1) bila seluruh energi potensial kembali menjadi kalor pada air terjun agar perbedaan suhu air diatas dan dibawah air terjun 1°C maka tinggi air terjun harus...?? 2) massa benda A 3 kali massa benda B dan kecepatan benda A setengah kali kecepatan B. Ek benda A dibandingkan Ek benda B adalah....?

$1) bila seluruh energi potensial kembali$ $menjadi kalor pada air terjun agar$ $perbedaan suhu air diatas dan dibawah$ $air terjun 1 ° C maka tinggi air terjun harus . . . ? ?$ $2) massa benda A 3 kali massa benda B$ $dan kecepatan benda A setengah kali$ $kecepatan B . Ek benda A dibandingkan$ $Ek benda B adalah . . . . ?$

Question Number 9141 Answers: 0 Comments: 5

Find the value of x if ((√(2 + (√3))))^x + ((√(2 − (√3))))^x = 4

$Find the value of x if$ ${(\sqrt{2 + \sqrt{3}})}^{x} + {(\sqrt{2 - \sqrt{3}})}^{x} = 4$

Question Number 9144 Answers: 1 Comments: 0

Let f(x)=x^(2013) +2 (a).Find the remainder when f(x) is divided by x+1.(done) (b). Show that when 7^(2013) +2 is divided by 8, the remainder is 1. (please help!)

$L e t f (x) = x^{2013} + 2$ $(a) . F i n d t h e r e m a i n d e r w h e n f (x) i s d i v i d e d b y x + 1 . (d o n e)$ $(b) . S h o w t h a t w h e n 7^{2013} + 2 i s d i v i d e d b y 8, t h e r e m a i n d e r$ $i s 1 . (p l e a s e h e l p!)$

Pg 1933 Pg 1934 Pg 1935 Pg 1936 Pg 1937 Pg 1938 Pg 1939 Pg 1940 Pg 1941 Pg 1942

Contact: info@tinkutara.com