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In chapter 2 misc ex .. in ques 15 why answer is 0 and not 1/2 . Reason

Posted by Navneet Kaur 6 years, 6 months ago

CBSE > Class 12 > Mathematics

2 answers

Navneet Kaur 6 years, 4 months ago

Thnks so much dharshini

Priya Dharshini ? 6 years, 6 months ago

That is 16th question not 15.... answer is 0 beacause u get 2 values of x. When u subtitute the 0 in the equation sin^-1 1 will remain which is equal to pi/2.... but when u subtitute 1/2 u will not get π/2... in these sums of mcq put both values and try then only u will get that ans

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