Prove that: [sin^4 theta – cos^4 theta + 1]cosec^2 theta=2

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Prove that: [sin^4 theta – cos^4 theta + 1]cosec^2 theta=2
25
Nov
Prove that: [sin^4 theta – cos^4 theta + 1]cosec^2 theta=2 Prove that: [sin^4 theta - cos^4 theta + 1]cosec^2 theta=2 November 25, 2020 Category: Chapter 8 - Introduction to Trigonometry , Maths , NCERT Class 10 ,
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