Which term of A.P 5,15,25 .....will be 130 more than its 31st term
Question
Maths
June 8, 2018, 7:05 p.m.
Answer
if cos alpha/cos beta = m and cos alpha/sin beta = n then show that (m^2+n^2) cos^2 beta = n^2
Where we have to put "c" in standard form of linear equation in 2 variable , in crosss multiplication method.