+ eccese e (Hint: Inte the expression in terms ef sin 0 and cos o BIRIIS

Prove the following identities. where the angles involved are acute angles for which the expressions are defined. (tantheta)/(1-cottheta)+(cottheta)/(1-tantheta)=1+secthetacosectheta [ Hint: Write the expression in terms of sin theta and cos theta ]

Express cos O/ in terms of tan O/ .

int e^cos x sin xdx

int e^(2x) sin x cos x dx

Express sin3A and cos2A in terms of sine function

Express cos^(6)A+sin^(6)A in terms of sin2A

Express sin "" (5pi)/(2) in terms of cos 5pi ,

int e^(x)sin x cos xdx

int sin x*cos x*e^(sin x)*dx