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Prove that, (1+tanA)^2 + (1-tanA)^2 = 2...

Prove that, `(1+tanA)^2 + (1-tanA)^2 = 2sec^2A`

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The motion of the particle on the circles is shown with bold lines in the figure starting at `A_(0)(1,0)`. Note that on every circle the particle tracels just 1 rad. The particle crosses the positive direction of the x-axis first time on `C_(n)`, where n is the least positive integer such that `nge2pirArrn=7`.
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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS -SINGLE CORRECT ANSWER TYPE
  1. Prove that, (1+tanA)^2 + (1-tanA)^2 = 2sec^2A

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  2. The circular wire of diameter 10 cm is cut and placed along the circum...

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  3. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  4. If theta in (pi//4, pi//2) and sum(n=1)^(oo)(1)/(tan^(n)theta)=sin the...

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  5. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  6. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  7. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  8. If (sin^(2)x-2cos^(2)x+1)/(sin^(2)x+2cos^(2)x-1)=4, then the value of ...

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  9. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  10. If tantheta-cottheta=aandsintheta+costheta=b, then, (b^2-1)^2(a^2+4...

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  11. The least value of 18 sin^(2)theta+2 cosec^(2)theta-3 is (a) -15 (b) ...

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  12. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  13. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  14. Find the cartesian co-ordinates of the points whose polar co-ordinates...

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  15. Simplify :cos(x-(pi)/(2)).tan((3pi)/(2)+x)

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  16. Consider angles alpha = (2n+(1)/(2))pi pm A and beta = m pi +(-1)^(m)(...

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  17. Which of the following is true ?

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  18. If the angle A of a triangle ABC is given by the equation 5 cos A + 3 ...

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  19. Which of the following is greatest ?

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  20. The number of value/values of x for which sin y=x^(2)-2x si possible i...

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  21. Which of the following is not correct ?

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