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The value of cos e c10^0+cos e c50^0-cos...

The value of `cos e c10^0+cos e c50^0-cos e c70^0` is ____

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CENGAGE ENGLISH-TRIGONOMETRIC FUNCTIONS-All Questions
  1. Given alpha+beta-gamma=pi, prove that sin^2alpha+sin^2beta-sin^2gamma...

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  2. The maximum value of y=1/(sin^6x+cos^6x) is

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  3. The value of cos e c10^0+cos e c50^0-cos e c70^0 is

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  4. Column I, a) int(e^(2x)-1)/(e^(2x)+1)dx is equal to b) int1/((e^x+e...

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  5. Given that f(ntheta)=(2sin2theta)/(cos2theta-cos4ntheta), and f(theta)...

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  6. If sin^2(theta-alpha)c a salpha=cos^2(theta-alpha)sinalpha=msinalphaco...

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  7. Find the maximum value of 4sin^2x+3cos^2x+sin(x/2)+cos(x/2)dot

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  8. Find the range of f(x)=1/((cosx-3)^2+(sinx+4)^2)

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  9. Find the maximum value of sqrt(3)sinx+cosx and x for which a maximum ...

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  10. In triangle A B C , if /A=pi/4, then find all possible values of tanBt...

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  11. If A=pi/5, then find the value of sum(r=1)^8tan(r A)*tan((r+1)A)dot

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  12. Prove that (1+tan1^0)(1+tan2^0)......(1+tan45^0)=2^(23)dot

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  13. Find the value of (cot25^0+cot55^0)/(tan25^0+tan55^0)+(cot55^0+cot100...

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  14. If tanx+tan2x+tan3x=tanxtan2xtan3x then value of |sin3x+cos3x| is

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  15. 16(costheta-cos(pi/8))(costheta-cos((3pi)/8))(costheta-cos((5pi)/8))(c...

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  16. Let 0lt=a , b , c ,dlt=pi, where b and c are not complementary, such...

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  17. The maximum value of the expression 1/(sin^2theta+3sinthetacostheta+5c...

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  18. (sec2x-tan2x) equals a) tan(x-pi/4) b)tan(pi/4-x) c)cot(x-pi...

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  19. Prove that cos65^0+cos115^0=0

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  20. If sinA=sinBa n dcosA=cosB , then prove that sin(A-B)/2=0

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