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2)Find the solution of sin2
If sin(θ) = -1/√2, find sin2(θ). (Recall that sin2(θ) means (sin(θ))2.)
sin2(θ) =
1 answer
asked by
Jimmy
1,134 views
(A) Consider the wave equation with c=1, l=1, u(0,t)=0, and u(l,t)=0. The initial data are: f(x)=x(1-x)2, g(x)=sin2(pi x). Find
0 answers
asked by
lucy
455 views
Find the limit as h approaches 0 of sin²(3x+3h) - sin²(3x) / h
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asked by
Erica
447 views
If A + B + C = 180°, Prove that
Sin² (A/2) + sin² (B/2) - sin²(C/2) = 1 – 2cos (A/2) cos (B/2) sin(C/2)
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asked by
Kewal
596 views
If A + B + C = 180°, Prove that
Sin² (A/2) + sin² (B/2) + sin²(C/2) = 1 – 2sin (A/2) sin (B/2) sin(C/2)
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asked by
Kewal
505 views
What is the first step. Explain please.
Which expression is equivalent to cos^2x + cot^2x + sin2^x? a) 2csc^2x b) tan^2x c)
4 answers
asked by
Jake
1,279 views
Lindsay solved the equation sin x = 1 - cos x by squaring each side to obtain
22 sin2 x = 1 - 2 cos x + cos2 x. Several steps
1 answer
75 views
cos²(θ) – 3sin(θ) – sin²(θ)= –2
____________________________ I am having a hard time figuring out what to do. Do I use
2 answers
asked by
sweetiepie
540 views
2)Find the solution of sin2 theta = cos theta if 0 -< theta < 180
A)30 degrees and 90 degrees B)30 degrees and 150 degrees C)30
5 answers
asked by
Jon
2,403 views
The expression 4 - cos² A is equivalent to
1)5 - sec² A 2)5 - sin² A 3)5 + sin² A 4)5/sec² A
1 answer
asked by
Moe
696 views