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AllQuestion and Answers: Page 1030

Question Number 108667 Answers: 4 Comments: 0

Question Number 108664 Answers: 1 Comments: 0

∫_0 ^( 2) ∫_0 ^( 2) x^2 sin(xy)dxdy

$\int_{0}^{2} \int_{0}^{2} x^{2} s i n (x y) d x d y$

Question Number 108663 Answers: 1 Comments: 0

Question Number 108652 Answers: 1 Comments: 1

Question Number 108845 Answers: 0 Comments: 0

Question Number 108644 Answers: 4 Comments: 1

((bemath)/★) find the value of sin ((π/9))sin (((2π)/9))sin (((3π)/9))sin (((4π)/9))?

$\frac{b e m a t h}{★}$ $f i n d t h e v a l u e o f$ $\sin (\frac{π}{9}) \sin (\frac{2 π}{9}) \sin (\frac{3 π}{9}) \sin (\frac{4 π}{9}) ?$

Question Number 108643 Answers: 2 Comments: 0

Question Number 108638 Answers: 1 Comments: 0

((bemath)/★) prove that (((n−1)),(( r)) ) + (((n−1)),((r−1)) ) = ((n),(r) )

$\frac{b e m a t h}{★}$ $p r o v e t h a t (\begin{matrix} n - 1 \\ r \end{matrix}) + (\begin{matrix} n - 1 \\ r - 1 \end{matrix}) = (\begin{matrix} n \\ r \end{matrix})$

Question Number 108637 Answers: 2 Comments: 0

Question Number 108628 Answers: 0 Comments: 4

Prove that the inequality ∣cos x∣ ≥ 1 − sin^2 x hold true for all x ∈ R

$Prove that the inequality ∣ \cos x ∣ ⩾ 1 - \sin^{2} x hold true for all x \in R$

Question Number 108626 Answers: 1 Comments: 0

Question Number 108623 Answers: 3 Comments: 0

((⊃BeMath⊃)/★) (1)lim_(b→a) ((b(√a)−a(√b))/(a(√a)+b(√a)−2a(√a))) (2) lim_(x→0) ((3e^(2x) +e^x −4)/x)

$\frac{\supset B e M a t h \supset}{★}$ $(1) \lim_{b \to a} \frac{b \sqrt{a} - a \sqrt{b}}{a \sqrt{a} + b \sqrt{a} - 2 a \sqrt{a}}$ $(2) \lim_{x \to 0} \frac{3 e^{2 x} + e^{x} - 4}{x}$

Question Number 108619 Answers: 1 Comments: 3

Question Number 108614 Answers: 0 Comments: 0

Question Number 108612 Answers: 0 Comments: 0

Question Number 108609 Answers: 1 Comments: 1

1 + 2 + 3 + 4 + 5 + ... ∞ = ???

$1 + 2 + 3 + 4 + 5 + . . . \infty = ? ? ?$

Question Number 108605 Answers: 2 Comments: 0

((BeMath)/≊) ∫ (x^(11) /((x^8 +1)^2 )) dx

$\frac{B e M a t h}{≊}$ $\int \frac{x^{11}}{{(x^{8} + 1)}^{2}} d x$

Question Number 108597 Answers: 3 Comments: 0

((∠ BeMath∠)/∦) (1) ∫ cos (ln x) dx (2) ∫ sin (ln x) dx

$\frac{∠ B e M a t h ∠}{∦}$ $(1) \int \cos (\ln x) d x$ $(2) \int \sin (\ln x) d x$

Question Number 108594 Answers: 2 Comments: 0

Question Number 108593 Answers: 1 Comments: 0

Question Number 108588 Answers: 2 Comments: 1

Question Number 108584 Answers: 0 Comments: 0

find ∫_0 ^1 ((ln(1+x^2 ))/(x+2))dx

$find \int_{0}^{1} \frac{\ln (1 + x^{2})}{x + 2} dx$

Question Number 108583 Answers: 1 Comments: 0

find ∫_0 ^1 ((ln(1+x^2 ))/(1+x^2 ))dx

$find \int_{0}^{1} \frac{\ln (1 + x^{2})}{1 + x^{2}} dx$

Question Number 108582 Answers: 2 Comments: 0

calculate ∫_0 ^∞ ((ln(1+x))/(1+x^2 )) dx

$calculate \int_{0}^{\infty} \frac{\ln (1 + x)}{1 + x^{2}} dx$

Question Number 108573 Answers: 3 Comments: 0

please: in AB^Δ C prove that: ((cos(A))/(sin(B)sin(C))) +((cos(B))/(sin(A)sin(C)))+((cos(C))/(sin(A)sin(B))) =2

$please : in A \overset{Δ}{B C} prove that :$ $\frac{c o s (A)}{s i n (B) s i n (C)} + \frac{c o s (B)}{s i n (A) s i n (C)} + \frac{c o s (C)}{s i n (A) s i n (B)} = 2$

Question Number 108571 Answers: 2 Comments: 0

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