If `theta & phi` lies in teh first quadrant such that `sin theta=8/17` and `cos phi=12/13` then find the value of `sin(theta-phi)`

If theta and phi lie in the first quadrant such that sin theta =(8)/(17) "and cos " phi =(12)/(13) find the values of (i) " sin"(theta- phi) " "(ii) " cos " (theta + phi) " " (iii) " tan " (theta - phi)

If theta and phi are angles in first quadrant and tan theta=(1)/(7) and sin phi=(1)/(sqrt(10)) then

If sin theta+sin phi=a and cos theta+cos phi=b find the value of tan((theta-phi)/(2))

If sin theta+sin phi=(1)/(2) and cos theta+cos phi=1 then find the value of cot((theta+phi)/(2))

If theta and phi are positive acute angles satisfying sin theta =1/2 and cos phi =1/3, then the value of (theta + phi) lies in the interval-

If sin theta+sin phi=(1)/(4) and cos theta+cos phi=(1)/(5) then value of sin(theta+phi) is

If theta and phi are acute angles, sin theta=1/2, cos phi= 1/3 , then the value of (theta + phi) is:

If sin theta=(1)/(2) and sin phi=(1)/(3), find the value of sin(theta+phi) and sin(2 theta+2 phi)