how to solve this question? 

10th class 6th chapter theorem

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Some applications of trigonometry,surface area volumes ,coordinate geomentry

verify the mean value theorem, if f(x) =x^3-5x^2-3x in the interval (a, b), where a=1and b=3.find all c€(1,3)for which f'(c) =0

integrate sin^4x/(sin^4x+cos^4x)dx

any body can solve the question

Maths 10th chapter 1 exercise 1.4

a solution of 3+2isintheta/1-2isintheta is purely real

Misc ch 11 mths.