how to prive

Asked by farkadeamol9 | 28th Aug, 2020, 10:53: AM

Expert Answer:

Consider,
(1-sin2A)cosec2B+cot2B(1-cos2A)
= (cos2A)(1/sin2B) + (cos2B/sin2B)(sin2A)
= (cos2A/sin2B) + (cos2B sin2A)/sin2B
= (cos2A + cos2B sin2A)/sin2B

Answered by Renu Varma | 31st Aug, 2020, 12:30: PM