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Write the subinterval of (0,pi) in which...

Write the subinterval of `(0,pi)` in which sin `(x+pi/4)` is increasing.

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USHA PUBLICATION-CONTINUITY AND DIFFERENTIABILITY APPLICATION OF DERIVATIVES -EXERCISE
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  3. Write the subinterval of (0,pi) in which sin (x+pi/4) is increasing.

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  4. Find the intervals where the following functions are (a) increasing an...

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  7. Find the equations of the tangent and the normal to the curve y = (x-7...

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  10. Show that f(x)=(logx)/xhas minimum value at x=e

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  11. Find (dy)/(dx) if x=(3at)/(1+t^3), y=(3at^2)/(1+t^3) at t=1/2

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  12. Find the extreme values of the function f(x)=x^2e^(-x^2) and show that...

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  15. what is the direction of cosine of the line passing through (4,2,3) an...

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  16. Show that the line y=mx+c touches the curve x^2/a^2-y^2/b^2 = 1 if c^2...

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  18. Find (dy)/(dx) if y=(1)/(sqrt(a^(2)-x^(2)))

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  20. If sqrt(1-x^(2))+sqrt(1-y^(2))=a(x-y) , then prove that (dy)/(dx)=sqrt...

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