CBSE Class 11-science Answered

how to solve

Asked by knb.hamsi | 31 Jan, 2020, 08:32: PM

Expert Answer

To evaluate:

limit as x rightwards arrow straight pi of fraction numerator 1 plus cos cubed x over denominator sin squared x end fraction

limit as x rightwards arrow straight pi of fraction numerator 1 plus cos cubed x over denominator sin squared x end fraction equals limit as x rightwards arrow straight pi of fraction numerator open parentheses 1 plus cos x close parentheses open parentheses 1 plus cos squared x minus cos x close parentheses over denominator 1 minus cos squared x end fraction equals limit as x rightwards arrow straight pi of fraction numerator open parentheses 1 plus cos x close parentheses open parentheses 1 plus cos squared x minus cos x close parentheses over denominator open parentheses 1 minus cos x close parentheses open parentheses 1 plus cos x close parentheses end fraction equals limit as x rightwards arrow straight pi of fraction numerator open parentheses 1 plus cos squared x minus cos x close parentheses over denominator open parentheses 1 minus cos x close parentheses end fraction equals limit as x rightwards arrow straight pi of open parentheses 1 plus fraction numerator cos squared x over denominator 1 minus cos x end fraction close parentheses equals 1 plus fraction numerator 1 over denominator 1 minus open parentheses negative 1 close parentheses end fraction equals 1 plus 1 half equals 3 over 2

Answered by Renu Varma | 03 Feb, 2020, 11:47: AM

Concept Videos