[" 9"cot B=(12)/(5)" prove "],[qquad tan^(2)B-sin^(2)B=sin4B sec^(2)B]

If cot B=(12)/(5), prove that tan^(2)B-sin^(2)B=sin^(4)B sec^(2)B

If cotB=(12)/5 , prove that tan^2B-sin^2B=sin^4Bsec^2B .

If cot B= 12/5 Prove that tan^2B-sin^2B=sin^4B.sec^2B .

Prove that sin(A+B)sin(A-B) = sin^(2)A-sin^(2)B

Prove that sin(A+B)sin(A-B) = sin^(2)A-sin^(2)B

Prove : (1-cos^(2)A) *sec ^(2)B + tan^(2)B (1- sin^(2)A) = sin^(2) A + tan^(2)B

If A+B = 90^(@) , then prove that sin^(2)A+sin^(2) B=1 tan^(2)A+cot^(2) B=0 .

Prove that sin(A+B)sin(A-B)=sin^2A-sin^2B

If cot A=(b)/(a) ,then prove that : (asin - b cosA)/(sin A+bcosA)=(a^(2)-b^(2))/(a^(2)+b^(2))

Prove that (i) (sin^(2)A cos^(2)B - cos^(2)A sin^(2) B )=(sin^(2)A- sin^(2)B) (ii) (tan^(2)A sec^(2)B - sec^(2)A tan^(2)B)=(tan^(2)A- tan^(2)B)