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Evaluate the sine, cosine, and tangent o...

Evaluate the sine, cosine, and tangent of each of the following angles without using a calculator: `300^0,-405^0,(7pi)/6,(11pi)/4dot`

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. Which of the following is possible? (a) sintheta=5/3 (b) tantheta=1...

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  2. Solve 2cos^2theta+sinthetalt=2, where pi/2lt=thetalt=(3pi)/2dot

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  3. Evaluate the sine, cosine, and tangent of each of the following angles...

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  4. Let A B C be a triangle with incenter I and inradius rdot Let D ,E ,a ...

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  5. Prove that the least positive value of x , satisfying tanx=x+1, lies i...

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  6. Find the reference angles corresponding to each of the following an...

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  7. If Delta is the area of a triangle with side lengths a, b, c, then s...

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  8. Suppose the point with coordinates (-12, 5) is on the terminal side of...

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  9. If ma n dn(n > m) are positive integers, then find the number of solut...

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  10. I(n) is the area of n sided refular polygon inscribed in a circle unit...

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  11. Solve 3tan2x-4tan3x=tan^2 3xtan2xdot

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  12. Assuming the distance of the earth from the moon to be 38,400 km and ...

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  13. Let the angles A , Ba n dC of triangle A B C be in AdotPdot and let b ...

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  14. Find the angle between the minute hand and the hour hand of a clock ...

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  15. For which values of a does the equation 4sin(x+pi/3)cos(x-pi/6)=a^2+sq...

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  16. If in a triangle of base 'a', the ratio of the other two sides is r ( ...

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  17. Solve sintheta+sqrt(3)costheta ge1,-pilttheta ltpi

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  18. For each natural number k, let Ck denotes the circle radius k centimet...

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  19. Let A,B,C, be three angles such that A=pi/4 and tanB tanC=pdot Find ...

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  20. Solve cos2x >|sinx|,x in (pi/2,pi)

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