If `cos(A-B)=3/5a n d\ t a n AtanB=2, t h e n` `cos A\ cosB=1/5` b. `cosA\ cos B=\ -1/5` c. `sin A\ sin B=\ -1/5` d. `sin A\ sin B=\ -1/5`

If cos(A-B)=3/5 and tanA tanB=2, then a.cos A cosB=1/5 b. cosA cos B= -1/5 c. sin A sin B= -1/5 d. sin A sin B= -1/5

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

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

If cos(A-B)=(3)/(5) andtan Atan B=2, then cos A cos B=(1)/(5)(b)sin A sin B=-(2)/(5)cos A cos B=-(1)/(5)(d)sin A sin B=-(1)/(5)

If cos(A-B)=3/5 and tanAtanB=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 A+B=pi/3a n d\ cos A+cos B=1,\ t h e n- a. cos(A-B)=1//3 b. \ |cos A-cos B|\ =sqrt(2/3) c. cos(A-B)=\ -1/3 d. \ |cos A-cos B|=1/(2sqrt(3))

If A+B=pi/3a n d\ cos A+cos B=1,\ t h e n- a. cos(A-B)=1//3 b. \ |cos A-cos B|\ =sqrt(2/3) c. cos(A-B)=\ -1/3 d. \ |cos A-cos B|=1/(2sqrt(3))

If A+B=pi/3a n d cos A+cos B=1, t h e n- a.cos(A-B)=1//3 b. |cos A-cos B| =sqrt(2/3) c.cos(A-B)= -1/3 d. |cos A-cos B|=1/(2sqrt(3))

If tanA.tanB=1/2,t h e n(5-3cos2A)(5-3cos2B)= (a)2 (b) 8 (c) 12 (d) 16