Prove The Identity, 1.) Sin Theta = Sin\Xb3 Theta + Cos\Xb2 Theta Sin Theta
Prove the identity
1.) Sin theta = sin³ theta + cos² theta sin theta
Step-by-step explanation:
to prove this, use trigonometric identities and factor out the best possible it can be
sin theta = sin³ theta + cos² theta sin theta
factor out sin theta in the right side of the equation
sin theta = sin theta ( sin² theta + cos² theta)
from trigonometric identities:
sin² theta + cos² theta = 1
sin theta = sin theta (1)
sin theta = sin theta
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