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AllQuestion and Answers: Page 1033

Question Number 109540 Answers: 1 Comments: 1

Question Number 109516 Answers: 3 Comments: 0

cos (1−i)=a+ib Find a, b.

$\cos (1 - i) = a + i b$ $F i n d a, b .$

Question Number 109506 Answers: 0 Comments: 0

Question Number 109509 Answers: 4 Comments: 0

((bemath)/(Σ_(i=cooll) ^(nice) (joss)_i )) ∫ ((x^2 dx)/( (√(x^2 +25))))

$\frac{b e m a t h}{\underset{i = c o o l l}{\sum^{n i c e}} {(j o s s)}_{i}}$ $\int \frac{x^{2} d x}{\sqrt{x^{2} + 25}}$

Question Number 109508 Answers: 2 Comments: 1

Question Number 109500 Answers: 3 Comments: 0

Given { ((a^2 +ab+bc+ac=a+c)),((b^2 +ab+bc+ac=b+a)),((c^2 +ab+bc+ac=c+b)) :} find the value of a+b+c

$G i v e n {\begin{cases} a^{2} + a b + b c + a c = a + c \\ b^{2} + a b + b c + a c = b + a \\ c^{2} + a b + b c + a c = c + b \end{cases}$ $f i n d t h e v a l u e o f a + b + c$

Question Number 109497 Answers: 1 Comments: 0

Question Number 109495 Answers: 4 Comments: 0

1) ∫_0 ^(Π/2) sin x∙sin 2x∙sin 3x∙dx = ? 2) ∫_0 ^(1/2) arcsin x∙dx= ?

$1) \int_{0}^{\frac{Π}{2}} \sin x \cdot \sin 2 x \cdot \sin 3 x \cdot d x = ?$ $2) \int_{0}^{\frac{1}{2}} \arcsin x \cdot d x = ?$

Question Number 109494 Answers: 2 Comments: 0

Question Number 109493 Answers: 1 Comments: 0

Question Number 109489 Answers: 2 Comments: 0

(1) sin (2x)−cos (2x)−sin (x)+cos (x)=0 (2)lim_(x→0) ((e^x −e^(−x) )/(sin x)) (3)lim_(x→−1) ∣x+1∣ sin (x+1)

$(1) \sin (2 x) - \cos (2 x) - \sin (x) + \cos (x) = 0$ $(2) \lim_{x \to 0} \frac{e^{x} - e^{- x}}{\sin x}$ $(3) \lim_{x \to - 1} ∣ x + 1 ∣ \sin (x + 1)$

Question Number 109488 Answers: 0 Comments: 0

How many are the permutations of 1 − a little rubik′s cube with 4 squares by side 2 − a classical one with 9 squares by side

$H o w m a n y a r e t h e p e r m u t a t i o n s o f$ $1 - a l i t t l e {r u b i k}^{'} s c u b e w i t h 4 s q u a r e s b y s i d e$ $2 - a c l a s s i c a l o n e w i t h 9 s q u a r e s b y s i d e$

Question Number 109485 Answers: 1 Comments: 0

If f(x)=ax^2 +bx+c, g(x)= −ax^2 +bx+c where ac ≠ 0, then f(x)g(x)=0 has

$If f (x) = {a x}^{2} + b x + c, g (x) = - {a x}^{2} + b x + c$ $where a c \neq 0, then f (x) g (x) = 0 has$

Question Number 109483 Answers: 1 Comments: 2

Question Number 109472 Answers: 4 Comments: 0

Question Number 109469 Answers: 0 Comments: 2

Question Number 109468 Answers: 0 Comments: 0

Question Number 109464 Answers: 0 Comments: 0

(√(1+(√(2+(√(3+(√(4+...))))))))

$\sqrt{1 + \sqrt{2 + \sqrt{3 + \sqrt{4 + . . .}}}}$

Question Number 109463 Answers: 0 Comments: 3

Question Number 109462 Answers: 1 Comments: 0

Question Number 109461 Answers: 1 Comments: 0

Question Number 109460 Answers: 1 Comments: 0

Question Number 109459 Answers: 0 Comments: 0

Question Number 109457 Answers: 3 Comments: 0

Question Number 109453 Answers: 1 Comments: 0

Question Number 109470 Answers: 0 Comments: 1

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