If `cosalpha=-3/5` and `sinbeta=7/25` where `pi/2 < alpha < pi` and `0 < beta < pi/ 2` then find the values of `tan(alpha+beta)` and `sin(alpha+beta)`=

If cos alpha=-(3)/(5) and sin beta=(7)/(25) where (pi)/(2)

If cos x=(3)/(5) and cos y=-(24)/(25), where (3pi)/2 and cos y=-(24)/(25), where

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find sin(A+B)

If cosA=-24/25 and cos B=3/5 where pi < A < (3pi)/2 and (3pi)/2 < B < 2pi then find cos(A+B)

If tan alpha=(5)/(2),tan beta=-(7)/(9) where alpha in[(pi)/(2),pi], then alpha+beta lies in the interval.[(3 pi)/(2),(7 pi)/(3)] (b) [(13 pi)/(6),(5 pi)/(2)][(13 pi)/(6),(7 pi)/(3)] (d) [(pi)/(6),(pi)/(3)]

If sinbeta is the harmonic mean of sinalpha and cosalpha , and sintheta is the arithmetic mean of sinalpha" and "cosalpha , then which of the following is/are correct? 1. sqrt(2)sin(alpha+(pi)/(4))sinbeta=sin2alpha 2. sqrt(2)sintheta=cos(alpha-(pi)/(4)) Select the correct answer using the code given below:

If sinalpha+cosbeta=5/4 and cosalpha+sinbeta=3/4 , then value of sin(alpha+beta)=?

" If "cos theta=(-7)/(25)" and ",theta in((5 pi)/(2),3 pi)" then "sin(theta/2) =(-4)/(5), cos(theta/2)=(3)/(5),sin(theta/2)=(-3)/(5), cos(theta/2)=(-4)/(5)

if cos x=(3)/(5) " and cos " y=(-24)/(25) " where " .(3pi)/(2) lt x lt 2 pi " and " pi lt y lt .(3pi)/(2) find the values of (i) " sin (x+y) "" ""(ii) cos (x-y) "" ""(iii) tan (x+y) "

If (cosalpha)/(cosbeta)=m and (cosalpha)/(sinbeta)=n , find (m^(2)+n^(2))cos^(2)beta