Question

solve it by rationalising the denominator..? 1. 1/√13​

Answer 1

Answer:

Ok Good question

Step-by-step explanation:

$if \\ f(x)=cos-1(113)(2cosx-3sinx) \\ +sin-1(113)(2cosx+3sinx)wr.t.1+x2, \\ then \: find \\ df(x)dx \\ at \\ x=34.$

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