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TrigonometryQuestion and Answers: Page 8

Question Number 197717 Answers: 0 Comments: 5

∡A=62 ∡C=43 Determiner: a=∡B c=∡D b=∡F

$∡ A = 62 ∡ C = 43$ $Determiner : a = ∡ B c = ∡ D b = ∡ F$

Question Number 197502 Answers: 0 Comments: 1

Question Number 197437 Answers: 4 Comments: 0

{ ((2sin (2x+y) sin y = cos 2x)),((sin 2x−sin 2y=(√2))) :} Find the solution

${\begin{cases} 2 \sin (2 x + y) \sin y = \cos 2 x \\ \sin 2 x - \sin 2 y = \sqrt{2} \end{cases}$ $F i n d t h e s o l u t i o n$

Question Number 197346 Answers: 1 Comments: 0

Question Number 197327 Answers: 2 Comments: 0

trigonometry... P = Π_(k=1) ^(44) ( 1 + tan(k) ) = ?

$t r i g o n o m e t r y . . .$ $P = \underset{k = 1}{\prod^{44}} (1 + t a n (k)) = ?$

Question Number 197073 Answers: 1 Comments: 0

Question Number 196929 Answers: 1 Comments: 0

Question Number 196886 Answers: 2 Comments: 0

Question Number 196883 Answers: 1 Comments: 0

Question Number 196881 Answers: 1 Comments: 1

Question Number 196816 Answers: 1 Comments: 0

Question Number 196755 Answers: 0 Comments: 0

Question Number 196625 Answers: 0 Comments: 0

Let a=BC b=CA c=AB ABC is rectangle iff tan((A^ /2))=(a/(b+c))

$L e t a = B C b = C A c = A B$ $A B C i s r e c t a n g l e i f f t a n (\frac{\hat{A}}{2}) = \frac{a}{b + c}$

Question Number 196523 Answers: 2 Comments: 0

resoudre dans c l equation sinx=2 ★erly rolvinst★ <erly rolvinst>

$r e s o u d r e d a n s c l e q u a t i o n s i n x = 2 ★ e r l y r o l v i n s t ★ < e r l y r o l v i n s t >$

Question Number 196518 Answers: 1 Comments: 0

resouxre cosx=2

$r e s o u x r e c o s x = 2$

Question Number 196517 Answers: 1 Comments: 0

Question Number 196413 Answers: 0 Comments: 3

determiner a et b

$determiner a et b$

Question Number 196394 Answers: 1 Comments: 0

If f(x)=∫^( x) _( 0) e^(−f(t)) dt Determine f(x)

$If f (x) = {\int_{0}}^{x} e^{- f (t)} d t$ $Determine f (x)$

Question Number 196302 Answers: 1 Comments: 0

Question Number 196265 Answers: 2 Comments: 0

Question Number 197583 Answers: 1 Comments: 0

{ ((((sin x)/(cos (x+y))) = −((√2)/2))),((((cos y)/(cos (x+y))) = ((√2)/2))) :} find the solution

${\begin{cases} \frac{\sin x}{\cos (x + y)} = - \frac{\sqrt{2}}{2} \\ \frac{\cos y}{\cos (x + y)} = \frac{\sqrt{2}}{2} \end{cases}$ $find the solution$

Question Number 196166 Answers: 1 Comments: 1

for any a,b∈[−1,1] calculate: arccos(a)+arcsin(b)=? arcsin(a)+arcsin(b)=? arccos(a)+arccos(b)=?

$f o r a n y a, b \in [- 1, 1] c a l c u l a t e :$ $a r c c o s (a) + a r c s i n (b) = ?$ $a r c s i n (a) + a r c s i n (b) = ?$ $a r c c o s (a) + a r c c o s (b) = ?$

Question Number 196008 Answers: 1 Comments: 2

Question Number 195972 Answers: 0 Comments: 0

Question Number 195517 Answers: 1 Comments: 0

Given ΔABC where BC= a, AC = b and AB = c . If ∠ A= 60° Find the value of (1+(b/c)+(a/c))(1+(c/b)+(a/b)).

$Given Δ ABC where BC = a,$ $AC = b and AB = c . If ∠ A = 60 °$ $Find the value of$ $(1 + \frac{b}{c} + \frac{a}{c}) (1 + \frac{c}{b} + \frac{a}{b}) .$

Question Number 195320 Answers: 1 Comments: 0

I_n =∫_0 ^( +∞) t^(−2t) sin^(2n) tdt Prove that I_n =(1/(1−e^(−2π) )) ∫^( π) _( 0) e^(−2t) sin^(2n) t dt and I_n ∽ _(∞) (1/(2sh(π)))(√(π/n))

$I_{n} = \int_{0}^{+ \infty} t^{- 2 t} {s i n}^{2 n} t d t$ $Prove that I_{n} = \frac{1}{1 - e^{- 2 π}} {\int_{0}}^{π} e^{- 2 t} {s i n}^{2 n} t d t$ $and I_{n} \underset{\infty}{∽} \frac{1}{2 s h (π)} \sqrt{\frac{π}{n}}$

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