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How do you solve sin2θ−cosθ=0
If θ represents an angle such that sin2θ = tanθ - cos2θ, then sin θ - cosθ =
A. -√2 B. 0 C. 1 D. 2√2 What equation can
3 answers
asked by
Peter
1,796 views
How do you solve sin2θ−cosθ=0 between -pi/2 less than or equal to θ less than or equal to 3pi/2?
2 answers
asked by
Anonymous
471 views
can someone help me prove the identities on this:
1- 1/2 sin2θ = sin^3θ + cos^3θ / sinθ + cosθ
1 answer
asked by
Albert
492 views
Solve the following equations giving any roots in terms of pi in the .......?
interval -2pi ≤ 0 ≤ 2pi. a) 2cos²Θ + sin²Θ
2 answers
asked by
raj
533 views
if cosθ=2/3 and tanθ<0 find the exact value
sin(θ-5π/3) sin2θ cos2θ cos(θ/2) can some1 please help me?
0 answers
asked by
Yulieth
468 views
if cosθ=2/3 and tanθ<0 find the exact value
sin(θ-5π/3) sin2θ cos2θ cos(θ/2) can some1 please help me?
1 answer
asked by
Yulieth
912 views
I really don't understand how to write the expression as one invloving only sinϴ and cosϴ
sin2ϴ+cos3ϴ
1 answer
asked by
wade
418 views
Ana was asked to use triangles formed by angles on the unit circle to prove the Pythagorean Identity sin2θ+cos2θ=1, where
1 answer
203 views
How do I prove that secθ - tanθsinθ = cosθ
So far I have LS 1/cosθ - sinθ/cosθ (sinθ) =1/cosθ -sin^2/cosθ
1 answer
asked by
Trisha
2,006 views
Ana was asked to use triangles formed by angles on the unit circle to prove the Pythagorean Identity sin2θ+cos2θ=1 , where
1 answer
19 views