find a if (cos^2 a - 1)(2cosec a - 4) = 0
please please give proper answer
I'll give 25 points
Answers
Answered by
0
Answer:
1) cos^2a-1=-sin^2a
2) 2cosec a - 4 = (2-4sin a )/ sin a
on multiplying 1×2 gives =2sin a - 4sin^2a
Similar questions
English,
1 month ago
Computer Science,
1 month ago
Political Science,
3 months ago
English,
3 months ago
Hindi,
9 months ago