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TrigonometryQuestion and Answers: Page 5

Question Number 205808 Answers: 2 Comments: 3

Question Number 205596 Answers: 1 Comments: 1

Question Number 205535 Answers: 2 Comments: 0

Question Number 205429 Answers: 2 Comments: 0

If, ϕ = (1/2) (π −cos^( −1) ((1/4) )) ⇒ log_( 2) ( (( 1+ cos(6ϕ ))/(cos^6 (ϕ ))) ) =?

$I f, φ = \frac{1}{2} (π - {c o s}^{- 1} (\frac{1}{4}))$ $\Rightarrow \log_{2} (\frac{1 + c o s (6 φ)}{{c o s}^{6} (φ)}) = ?$

Question Number 205403 Answers: 1 Comments: 0

Question Number 205153 Answers: 0 Comments: 0

Question Number 204845 Answers: 1 Comments: 0

Question Number 204729 Answers: 1 Comments: 0

Question Number 204663 Answers: 1 Comments: 0

Question Number 204628 Answers: 2 Comments: 0

Question Number 204617 Answers: 0 Comments: 1

Question Number 204471 Answers: 2 Comments: 0

Question Number 204293 Answers: 1 Comments: 1

Prove the following trig identity: ((2sinα+sin3α+sin5α)/(cosα−2cos2α+cos3α))=((2cos2α)/(tan(α/2)))

$Prove the following trig identity :$ $\frac{2 \sin α + \sin 3 α + \sin 5 α}{\cos α - 2 \cos 2 α + \cos 3 α} = \frac{2 \cos 2 α}{\tan \frac{α}{2}}$

Question Number 204101 Answers: 0 Comments: 0

Find the possible values for x and y if 10cosx + 12cos(x+y)=5 10sinx + 12sin(x+y)=20.66

$F i n d t h e p o s s i b l e v a l u e s f o r x a n d y i f$ $10 c o s x + 12 c o s (x + y) = 5$ $10 s i n x + 12 s i n (x + y) = 20.66$

Question Number 204083 Answers: 2 Comments: 0

Given that tan(A + B) = 1 and tan(A - B) = 1/7 find tan A and tan B

Question Number 204072 Answers: 1 Comments: 0

((sin^2 θ)/2)=sin 2θ? (90°>θ>0°)

$\frac{\sin^{2} θ}{2} = \sin 2 θ ? (90 ° > θ > 0 °)$

Question Number 203935 Answers: 2 Comments: 0

((cos(x/3)+sin (x/3))/(cos (x/3)−sin (x/3)))=?

$\frac{c o s \frac{x}{3} + s i n \frac{x}{3}}{c o s \frac{x}{3} - s i n \frac{x}{3}} = ?$

Question Number 203897 Answers: 3 Comments: 0

Question Number 203704 Answers: 1 Comments: 0

Q: In AB^Δ C : ( AB=AC=b ) and ( BC=a ). If , cos (A )= (a^2 /b^2 ) , then find the value of : (√((b/a) )) =?

$Q : I n A \overset{Δ}{B C} : (A B = A C = b) a n d (B C = a) .$ $I f, c o s (A) = \frac{a^{2}}{b^{2}}, t h e n f i n d t h e v a l u e o f :$ $\sqrt{\frac{b}{a}} = ?$

Question Number 203325 Answers: 1 Comments: 0

sin^2 x+cos^2 (2x)+sin^2 (3x)=(3/2)

$\sin^{2} x + \cos^{2} (2 x) + \sin^{2} (3 x) = \frac{3}{2}$

Question Number 203321 Answers: 1 Comments: 0

Help-me! Observe points A, B and C below and find the widthof a lake according to the following data: (AB)m; C^ = 39°52′12′′ (BC − 257.5)m; A^ = 97°7′56′′ (CA − 30)m; B^ = 42°59′52′′ CA is the width of the lake •^C •_A •_B

$Help - me!$ $Observe points A, B and C below and find the widthof a lake according to the following data :$ $(AB) m; \hat{C} = 39 ° 52^{'} 12^{″}$ $(BC - 257.5) m; \hat{A} = 97 ° 7^{'} 56^{″}$ $(CA - 30) m; \hat{B} = 42 ° 59^{'} 52^{″}$ $CA is the width of the lake$ $∙^{C}$ $∙_{A}$ $∙_{B}$

Question Number 203277 Answers: 0 Comments: 0

Question Number 203244 Answers: 0 Comments: 0

Question Number 203171 Answers: 1 Comments: 2

Ratio of green blue and Red triangles? Evaluate these Area for 𝛂=25° and length of aquart=1

$Ratio of green blue and Red triangles ?$ $Evaluate these Area for α = 25 ° and$ $length of aquart = 1$

Question Number 203117 Answers: 3 Comments: 0

Question Number 202976 Answers: 2 Comments: 1

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