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Convert 40^(@),20' into radian measure....

Convert `40^(@),20'` into radian measure.

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The correct Answer is:
`(121pi)/(540)` Radian
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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK
  1. Convert 40^(@),20' into radian measure.

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  2. Convert 6 radians into degree measure.

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  3. Find the radius of the circle in which a central angle of 60^(@) inter...

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  4. The minute hand of a watch is 1.5cm long. How far does it tip move in ...

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  5. If the arcs of the same lengths in two circles subtends angles 65^(@)a...

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  6. If cosx=(-3)/(5),x lies in the third quadrant, find the values of othe...

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  7. If cotx=(-5)/(12),x lies in second quadrant, find the values of other ...

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  8. Find the value of sin""(31pi)/(3)

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  9. Find the value of cos(-1710^(@))

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  10. Prove that, 3sin""(pi)/(6)sec""(pi)/(3)-4sin""(5pi)/(6)cot""(pi)/(4)=1

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  11. Find the value of sin15^(@).

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  12. Find the value of tan""(13pi)/(12)

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  13. Prove that, (sin(x+y))/(sin(x-y))=(tanx+tany)/(tanx-tany)

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  14. Show that, tan3xtan2xtanx=tan3x-tan2x-tanx.

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  15. Prove that, cos((pi)/(4)+x)+cos((pi)/(4)-x)=sqrt(2)cosx.

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  16. Prove that, (cos7x+cos5x)/(sin7x-sin5x)=cotx

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  17. Prove that, (sin5x-2sin3x+sinx)/(cos5x-cosx)=tanx

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  18. Find the principal solutions of the equation sinx=sqrt(3)/(2).

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  19. Find the principal solutions of the equation tanx=-(1)/(sqrt(3)).

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  20. Find the solution of sinx=-(sqrt(3))/(2).

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