Trigonometry Formulas

CosBSinA + CosASinB

SinBCosA + CosBSinA

CosACosB - SinASinB

None of these

CosACosB + SinASinB

—CosACosB + SinASinB

CosACosB - SinASinB

SinACosB - CosASinB

CosDCosC-SinDSinC

sinDcosC-sinCcosD

sinD sinC - cosD cosC

none of these

$\cos^27x$

$2\cos^27x$

$2\sin^214x$

$\sin^23x$

$\frac{\cot A\cot B-1}{\cot A+\cot B}$

$\frac{\cot A\cot B+1}{\cot A-\cot B}$

$\frac{\cot A\cot B-1}{\cot B-\cot A}$

NONE OF THESE

CosB CosA+SinBSinA

CosACosB-SinASinB

CosASinB-SinACosB

None of these

 $4\sin^3\theta-3\sin\theta$  

 $3\sin\theta+4\sin^3\theta$  

 $3\sin\theta-4\sin^3\theta$  

 $4\sin^3\theta+3\sin\theta$  

 $4\cos^3\theta+3\sin\theta$  

 $4\cos^3\theta-3\cos\theta$  

 $3\cos\theta-4\cos^3\theta$  

 $3\cos^3\theta-4\cos\theta$  

 $\sin3A-\sin3B$  

 $\cos3A+\cos3B$  

 $\cos\left(3A+3B\right)$  

 $\sin\left(3A-3B\right)$  

 $\sin A-\sin B$ 

 $\cos A-\cos B$ 

 $\sin\left(A-B\right)$ 

 $\cos\left(A-B\right)$