what does 2sin^2θ equal?

1 ⤊

this involves trig identities.
i know...
(sinθ)(sinθ)=sin^2θ

so does 2sin^2θ equal...
(2sin^2θ)(sin^2θ) ?

thanks for the help.

2007-01-13 05:14:02 · 5 answers · asked by shih rips 6 in Science & Mathematics ➔ Mathematics

No, it equals 2(sinθ)(sinθ)

2007-01-13 05:19:05 · answer #1 · answered by podnaes 2 · 0⤊ 0⤋

so does 2sin^2Î¸ equal...
(2sin^2Î¸)(sin^2Î¸) ?

No, because sin^2*sin^2 = sin^4.

2007-01-13 13:23:50 · answer #2 · answered by eva 3 · 0⤊ 0⤋

no 2sin^2x (lets say theta=x coz i cant put the theta)

is equal to 2 * sinx *sinx

( 2sin^2x )( sin^2x) = 2sin^4x

2007-01-13 13:20:18 · answer #3 · answered by ladysarah 2 · 0⤊ 0⤋

=cos2B+1

2007-01-13 13:20:09 · answer #4 · answered by JAMES 4 · 1⤊ 0⤋

0.68 is the answer

2007-01-13 13:23:31 · answer #5 · answered by shadow_gx 2 · 0⤊ 0⤋