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Question Number 62712 Answers: 0 Comments: 0

Question Number 62750 Answers: 0 Comments: 1

An element X has RAM of 88g.when a current of 0.5A was passed through fused chloride of X for 32minutes and 10sec. 0.44g of X was deposited at the cathode (a)number of faraday? (b)write formular of X ions (c)write the formular of OH

$A n e l e m e n t X h a s R A M$ $o f 88 g . w h e n a c u r r e n t$ $o f 0.5 A w a s p a s s e d t h r o u g h$ $f u s e d c h l o r i d e o f X f o r$ $32 m i n u t e s a n d 10 s e c .$ $0.44 g o f X w a s d e p o s i t e d$ $a t t h e c a t h o d e$ $(a) n u m b e r o f f a r a d a y ?$ $(b) w r i t e f o r m u l a r o f$ $X i o n s$ $(c) w r i t e t h e f o r m u l a r o f O H$

Question Number 62413 Answers: 0 Comments: 0

calculate W_n = ∫_0 ^(π/2) cos^n xdx ( n from N) and J_n =∫_0 ^(π/2) sin^n xdx

$c a l c u l a t e W_{n} = \int_{0}^{\frac{π}{2}} {c o s}^{n} x d x (n f r o m N) a n d J_{n} = \int_{0}^{\frac{π}{2}} {s i n}^{n} x d x$

Question Number 62410 Answers: 0 Comments: 0

prove that ∫_0 ^∞ e^(−t) ln(t) dt =−γ ( γ is the constant of euler)

$p r o v e t h a t \int_{0}^{\infty} e^{- t} l n (t) d t = - γ (γ i s t h e c o n s t a n t o f e u l e r)$

Question Number 62395 Answers: 0 Comments: 1

The Most Beautiful Equation for me is: e^(iπ) +1=0 INCREDIBLE! #Euler′sIdentity

$The Most Beautiful Equation$ $for me is :$ $e^{i π} + 1 = 0$ $INCREDIBLE!$ $You can't use 'macro parameter character #' in math mode$

Question Number 62341 Answers: 2 Comments: 3

How many real root does the equation x^8 − x^7 + 2x^6 − 2x^5 + 3x^4 − 3x^3 + 4x^2 − 4x + (5/2) = 0 has

$How many real root does the equation$ $x^{8} - x^{7} + {2 x}^{6} - {2 x}^{5} + {3 x}^{4} - {3 x}^{3} + {4 x}^{2} - 4 x + \frac{5}{2} = 0 has$

Question Number 62288 Answers: 0 Comments: 0

M_(TP) =Q(D/Z) × f_

$M_{T P} = Q \frac{D}{Z} \times f_{}$

Question Number 62241 Answers: 1 Comments: 0

if the point A B C with position vector (20i^ +λj^ ) (5i^ −j^ ) and(10i^ −13j^ ) are collinear then the value of λ is:

$i f t h e p o i n t A B C w i t h p o s i t i o n v e c t o r$ $(20 \hat{i} + λ \hat{j}) (5 \hat{i} - \hat{j}) a n d (10 \hat{i} - 13 \hat{j}) a r e$ $c o l l i n e a r t h e n t h e v a l u e o f λ i s :$

Question Number 62139 Answers: 0 Comments: 0

6+5>3×5 true or false

$6 + 5 > 3 \times 5 true or false$

Question Number 62109 Answers: 1 Comments: 2

Given that (1+(√(1+x)))tan x=(1+(√(1−x))). Then find sin 4x.

$G i v e n t h a t$ $(1 + \sqrt{1 + x}) \tan x = (1 + \sqrt{1 - x}) .$ $T h e n f i n d \sin 4 x .$

Question Number 62088 Answers: 0 Comments: 3

Question Number 62037 Answers: 1 Comments: 0

3no_2 +h_2 o⇒2hno_3 +no

$3 {n o}_{2} + h_{2} o \Rightarrow 2 {h n o}_{3} + n o$

Question Number 62036 Answers: 0 Comments: 3

Correct me if I am wrong. Σ_((√(−1))=1) ^3 x_(√(−1)) +y_(√(−1)) ∴(i=(√(−1)))

$Correct me if I am wrong .$ $\underset{\sqrt{- 1} = 1}{\sum^{3}} x_{\sqrt{- 1}} + y_{\sqrt{- 1}}$ $∴ (i = \sqrt{- 1})$

Question Number 62016 Answers: 0 Comments: 1

the 2 and 3 term of GP is 24 and 12(x+1).If the sum of the first 3 terms is 76.Find the value of x

$t h e 2 a n d 3 t e r m o f G P i s 24$ $a n d 12 (x + 1) . I f t h e s u m o f t h e$ $f i r s t 3 t e r m s i s 76 . F i n d t h e v a l u e$ $o f x$

Question Number 61923 Answers: 1 Comments: 0

Find all solutions of x^3 − 12x + 8 = 0

$F i n d a l l s o l u t i o n s o f$ $x^{3} - 12 x + 8 = 0$

Question Number 61915 Answers: 1 Comments: 0

1+iw+(iw)^2 +(iw)^3 +.........(iw)^(989) =? ans= (2/(1−iw)) answer is correct. pls help .. how to do this? TIA

$1 + i w + {(i w)}^{2} + {(i w)}^{3} + . . . . . . . . . {(i w)}^{989} = ?$ $a n s = \frac{2}{1 - i w} a n s w e r i s c o r r e c t .$ $p l s h e l p . . h o w t o d o t h i s ?$ $T I A$

Question Number 61843 Answers: 0 Comments: 3

let V be a vector space and let H and K be subspace of V. show that , H+K={x:x=h+k, where h∈H and k∈K} is a subspace of V.

$l e t V b e a v e c t o r s p a c e a n d l e t H a n d K b e$ $s u b s p a c e o f V . s h o w t h a t,$ $H + K = {x : x = h + k, w h e r e h \in H a n d k \in K} i s a s u b s p a c e o f V .$

Question Number 61840 Answers: 1 Comments: 0

consider the triple of real numbers (x,y,z) defined by the addittion (x,y,z)+(x′,y′,z′)=(x+x′,y+y′,z+z′) and scalar multiplication by 𝛂(x,y,z)=(0,0,0). Show that all axioms for a vector space are satisfied except axiom 8.

$c o n s i d e r t h e t r i p l e o f r e a l n u m b e r s (x, y, z)$ $d e f i n e d b y t h e a d d i t t i o n (x, y, z) + (x^{'}, y^{'}, z^{'}) = (x + x^{'}, y + y^{'}, z + z^{'})$ $a n d s c a l a r m u l t i p l i c a t i o n b y α (x, y, z) = (0, 0, 0) .$ $S h o w t h a t a l l a x i o m s f o r a v e c t o r s p a c e a r e s a t i s f i e d e x c e p t a x i o m 8 .$