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Question Number 41707 Answers: 2 Comments: 0

Here′s a question that has troubled me for months now.Please help 5^(√x) − 5^(x−7) =100 find the possible value(s) of x.

${H e r e}^{'} s a q u e s t i o n t h a t h a s$ $t r o u b l e d m e f o r m o n t h s n o w . P l e a s e$ $h e l p$ $5^{\sqrt{x}} - 5^{x - 7} = 100$ $f i n d t h e p o s s i b l e v a l u e (s) o f x .$

Question Number 41642 Answers: 1 Comments: 0

n(n − 1)(n − 2)(n − 3) .... (n − r + 1) = ??

$n (n - 1) (n - 2) (n - 3) . . . . (n - r + 1) = ? ?$

Question Number 41616 Answers: 0 Comments: 0

Question Number 41783 Answers: 1 Comments: 0

Question Number 41508 Answers: 0 Comments: 0

A facial surgery is estimated to cost N25millon in 10 years time. A 50 years old woman that is expecting to go on retirement at 55years is planning to generate funds for the surgery at her retirement. ow much should she set aside for the surgery if the interest rate is 14.75% at the time of retirement? what is the present value of the cost of surgery?(as at the time the woman is 50years given the interest rate at that time is 11.5%)

$A facial surgery is estimated to cost N 25 millon in 10 years time .$ $A 50 years old woman that is expecting to go on retirement at 55 years is planning to generate funds for the surgery at her retirement .$ $ow much should she set aside for the surgery if the interest rate is 14 . 75 % at the time of retirement ?$ $what is the present value of the cost of surgery ? (as at the time the woman is 50 years given the interest rate at that time is 11 . 5 %)$

Question Number 41231 Answers: 1 Comments: 1

Question Number 41174 Answers: 1 Comments: 0

Question Number 41066 Answers: 1 Comments: 0

Question Number 41009 Answers: 1 Comments: 1

Question Number 40960 Answers: 0 Comments: 1

Question Number 40918 Answers: 1 Comments: 0

Question Number 40917 Answers: 1 Comments: 0

Question Number 40743 Answers: 2 Comments: 0

Question Number 40738 Answers: 2 Comments: 2

Question Number 40583 Answers: 2 Comments: 0

2^(√x) = x find x

$2^{\sqrt{x}} = x$ $f i n d x$

Question Number 40523 Answers: 1 Comments: 1

If (1+ax+bx^2 )(1−2x)^(18) can be expanded using binomial theorem in ascending power of x.Determine the value of a and b,if the coefficient of x^3 and x^(4 ) are both zero.

$I f (1 + a x + {b x}^{2}) {(1 - 2 x)}^{18} c a n b e e x p a n d e d u s i n g$ $b i n o m i a l t h e o r e m i n a s c e n d i n g p o w e r o f x . D e t e r m i n e$ $t h e v a l u e o f a a n d b, i f t h e c o e f f i c i e n t o f x^{3} a n d x^{4} a r e b o t h z e r o .$

Question Number 40497 Answers: 0 Comments: 1

please i want to have applications of limits in maths and other sciences

$p l e a s e i w a n t t o h a v e a p p l i c a t i o n s o f$ $l i m i t s i n m a t h s a n d o t h e r s c i e n c e s$

Question Number 40510 Answers: 1 Comments: 0

Given that ax+b is a factor of x^2 +2x^2 −1 and −a is a root of x^2 +2x −1=0 show that the value of b is −1 or 3+2(√(2 .))

$G i v e n t h a t a x + b i s a f a c t o r o f x^{2}$ $+ 2 x^{2} - 1 a n d - a i s a r o o t o f x^{2} + 2 x$ $- 1 = 0 s h o w t h a t t h e v a l u e o f b i s$ $- 1 o r 3 + 2 \sqrt{2 .}$

Question Number 40378 Answers: 1 Comments: 3

(1/(1!))+(1/(2!))+(1/(3!))+....+(1/(2018!))=?

$\frac{1}{1!} + \frac{1}{2!} + \frac{1}{3!} + . . . . + \frac{1}{2018!} = ?$

Question Number 40466 Answers: 1 Comments: 5

Q..cos^(−1) (1−2x^2 )=2sin^(−1) x,prove please

$Q . . \cos^{- 1} (1 - 2 x^{2}) = {2 \sin}^{- 1} x, p r o v e$ $p l e a s e$

Question Number 40352 Answers: 0 Comments: 1

If A= [((4 −3)),((1 0)) ]use the fact that A^2 =4A−3I_2 and mathematical induction to prove A^n =(((3^n −1))/2)A +((3−3^n )/2)I if n≥1

$I f A = [\begin{matrix} 4 - 3 \\ 1 0 \end{matrix}] u s e t h e f a c t t h a t$ $A^{2} = 4 A - 3 I_{2} a n d m a t h e m a t i c a l i n d u c t i o n t o p r o v e$ $A^{n} = \frac{(3^{n} - 1)}{2} A + \frac{3 - 3^{n}}{2} I i f n ⩾ 1$

Question Number 40284 Answers: 1 Comments: 0

How many permutation can be made using the word CANADA each of the six letter being used mixed in each permutation? In how many of these permutation will the three A′s be together? In how many will two A′s be together but not the three?

$H o w m a n y p e r m u t a t i o n c a n b e m a d e u s i n g t h e w o r d$ $C A N A D A e a c h o f t h e s i x l e t t e r b e i n g u s e d m i x e d$ $i n e a c h p e r m u t a t i o n ? I n h o w m a n y o f t h e s e$ $p e r m u t a t i o n w i l l t h e t h r e e A^{'} s b e t o g e t h e r ? I n$ $h o w m a n y w i l l t w o A^{'} s b e t o g e t h e r b u t n o t t h e t h r e e ?$

Question Number 40283 Answers: 0 Comments: 0

There are four ladies and four gentlemen ready to play tennis.if there is only one tennis court readily available. In how many ways is it possible to arrange for one mixed double to be played (a lady and gentleman)?

$T h e r e a r e f o u r l a d i e s a n d f o u r g e n t l e m e n r e a d y t o p l a y$ $t e n n i s . i f t h e r e i s o n l y o n e t e n n i s c o u r t r e a d i l y$ $a v a i l a b l e . I n h o w m a n y w a y s i s i t p o s s i b l e t o a r r a n g e f o r o n e m i x e d d o u b l e t o b e p l a y e d$ $(a l a d y a n d g e n t l e m a n) ?$

Question Number 40271 Answers: 1 Comments: 0

Using Bionomial solve; Given that y = 3x and x increases at 2(1/2)%, find percentage increase in y.

$U s i n g B i o n o m i a l s o l v e;$ $G i v e n t h a t y = 3 x a n d x i n c r e a s e s$ $a t 2 \frac{1}{2} %, f i n d p e r c e n t a g e i n c r e a s e$ $i n y .$

Question Number 40254 Answers: 0 Comments: 3

sum of this series: 1.3.5+3.5.7+5.7.9+...up to n terms

$s u m o f t h i s s e r i e s :$ $1.3.5 + 3.5.7 + 5.7.9 + . . . u p t o n t e r m s$

Question Number 40238 Answers: 2 Comments: 0

Pg 101 Pg 102 Pg 103 Pg 104 Pg 105 Pg 106 Pg 107 Pg 108 Pg 109 Pg 110

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