" (ii) "sin A*cos B-cos A*sin B." यदि "tan A=sqrt(3)" और "sin B=(1)/(2)

In a Delta ABC ,angle C=90^(@)and tan A=(1)/(sqrt(3)). find the values of : (i) (sin A*cos B+ cos A*sin B ) " " (ii) (cos A*cos B-sin A*sin B)

If sin A=a cos B and cos A=b sin B then tan^(2)B =

If A=B=60o, verify that cos(A-B)=cos A cos B+sin A sin B(iii)sin(A-B)=sin A cos B-cos A sin B(iii)tan(A-B)=(tan A-tan B)/(1+tan A tan B)

If cos(A-B)=3/5 and tan A tan B=2, then (a) cos A cos B=1/5 (b) sin A sin B=-2/5 (c) cos A cos B=-1/5 (d) sin A sin B=-1/5

If tan A=(1-cos B)/(sin B), then tan2A=tan B

If sqrt(2)cos A = cos B + cos^(3)B , and sqrt(2)sin A = sin B- sin^(3)B then sin(A-B)=

Prove that (sin A-sin B)/(cos A+ cos B) = "tan" (A-B)/2

(sin A + sin B) / (cos A + cos B) = tan ((A + B) / (2))

Show that (1+ sin A)/(cosA)+( cos B)/(1- sin B)=(2 (sin A- sin B))/(sin (A-B)+ cos A-cos B)

sin 2A + sin 2B + sin 2 (A-B)= A) 4 sin A * sin B * sin (A-B) B) 4 sin A * cos B * cos (A-B) C) 4 cos A * sin B * cos (A-B) D) 4 cos A * cos B * sin (A-B)