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CBSE Class 12-science Answered

differntiate wrt x If y = sec-1 ( x + 1/ x – 1) + sin-1 ( x – 1 / x + 1), show that dy/dx = 0
Asked by haroonrashidgkp | 27 May, 2018, 12:51: PM
Expert Answer
begin mathsize 16px style straight y equals sec to the power of negative 1 end exponent open parentheses fraction numerator straight x plus 1 over denominator straight x minus 1 end fraction close parentheses plus sin to the power of negative 1 end exponent open parentheses fraction numerator straight x minus 1 over denominator straight x plus 1 end fraction close parentheses straight y equals cos to the power of negative 1 end exponent open parentheses fraction numerator straight x minus 1 over denominator straight x plus 1 end fraction close parentheses plus sin to the power of negative 1 end exponent open parentheses fraction numerator straight x minus 1 over denominator straight x plus 1 end fraction close parentheses straight y equals straight pi over 2 dy over dx equals 0 end style
Answered by Sneha shidid | 28 May, 2018, 10:41: AM

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