If `s in A=3/5a n d\ cos B=9/(14),\ 0

If sinA=3/5 and cosB=9/41, 0 < A < pi/2 and 0 < B < pi/2 then find the values of (i) sin(A+B) (ii) sin(A-B) (iii) cos(A+B) (iv) cos(A-B)

If cosP=1/7a n d\ cos Q=(13)/(14)w h e r e\ P\ a n d\ Q both are acute angles. Then, the value of P-Q is a. 30^0 b. 60^0 c. 45^0 d. 75^0

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 s in A=(12)/(13)a n dsinB=4/5,\ w h e r e\ pi/2

If A and B are two independent events with P(A)=3/5a n d\ P(B)=4/9, t h e n\ P( A nn B ) equals 4/(15) b. 8/(45) c. 1/3 d. 2/9

If A={1,2,3,4,5}a n d\ B={1,3,9, 12} then AnnB={1,3}dot

If cos x=\ -3/5a n d\ x lies in the IIIrd quadrant, find the values of cos(x/2),sin(x/2)a n d\ sin2xdot

If A+B+C=pi,\ t h e n\ |"sin"(A+B+C)s in B cos C-s in B0t a n A"cos"(A+B)-t a n A0| is equal to 2s in B t a n A cos C b. 1 c. 0 d. none of these

If A={1,2,3,4,5,6,7,8}\ a n d\ B={1,3,5,6,7,8,9},\ t h e n\ A-B={2,4},\ B-A={9}dot

In a A B C , if a=3,b=5a n dc=7,fin dcos A ,cos Ba n dcos Cdot