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about to only mathematics...

about to only mathematics

A

2

B

0

C

4

D

6

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The correct Answer is:
B
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ALLEN-BASIC MATHS,LOGARITHIM, TRIGNOMETRIC RATIO AND IDENTITIES AND TRIGNOMETRIC EQUATION -EXERCISE (O-1)
  1. If log(1/3)((3x-1)/(x+2)) is less than unity, then 'x' must lie in the...

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  2. If s in x=cos^2x ,\ then write the value of cos^2x\ (1+cos^2x)dot

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  3. about to only mathematics

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  4. The value of "cos"^(2)48^(@)-"sin"^(2)12^(@) is

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  5. The expression (sin8thetacostheta-sin6thetacos3theta)/(cos2thetacosthe...

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  6. Prove that: (sin(A-C)+2s inA+"sin"("A"+"C")/("sin"("B"-"C")+2sinB+"sin...

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  7. about to only mathematics

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  8. If A=tan6^(@)tan42^(@)and B=cot66^(@)cot78^(@),then

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  9. If a=b cos((2pi)/3)= c cos((4pi)/3), then write the value of a b+b c+c...

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  10. If t a nalpha=1/(1+2^(-x))a n dt a nbeta=1/(1+2^(x+1)), then write the...

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  11. If tan alpha + tanB + tanC = tanA tanB tanC, then

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  12. If f(x)=(sin 3x)/(sin x), x != n pi , then find range of f(x)

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  13. If cosx+cosy+cosalpha=0 and sinx + siny + sinalpha=0, then cot((x+y)/2...

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  14. The vlaue of sin""(pi)/(14)sin""(3pi)/(14)sin""(5pi)/(14)sin""(7pi)/(1...

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  15. Maximum and minimum value of 2sin^(2)theta-3sintheta+2 is-

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  16. For theta in(0,pi/2) , the maximum value of sin(theta+pi/6)+cos(theta+...

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  17. Find the maximum and minimum value of cos^(2) theta- 6 sin theta cos ...

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  18. The general solution of tan3x =1 is

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  19. The number of solutions of the equation tan^2x-sec^10x+1=0 in (0,10) i...

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  20. The solution set of (5+4 "cos" theta) (2 "cos" theta +1) =0 in the int...

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