Is sin^2(θ)+2cos(θ)-1=cos(θ) ?

The answer to whether sin^2(θ)+2cos(θ)-1=cos(θ) is False

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

prove sin^2(θ)+2cos(θ)-1=cos(θ)

prove

sin^{2} (θ) + 2 cos (θ) - 1 = cos (θ)

False

Solution steps

sin^{2} (θ) + 2 cos (θ) - 1 = cos (θ)

Show that the two sides are not equal

\Rightarrow False

cos (a - b) = cos (a) cos (b) + sin (a) sin (b)

1 + cos^{2} (x) csc^{2} (x) = \frac{1}{sin ^{2} ( x )}

sin (x) cos (x) = sin (2 x)

tan (x) + cot (x) = sec (x) cos (x)

tan^{2} (\frac{5 π}{4}) = tan (\frac{5 π}{4})

Is sin^2(θ)+2cos(θ)-1=cos(θ) ?
The answer to whether sin^2(θ)+2cos(θ)-1=cos(θ) is False