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If (pi/4)< theta <(pi/2),then write the ...

If `(pi/4)< theta <(pi/2)`,then write the value of `sqrt(1-sin2theta)`

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RD SHARMA ENGLISH-TRIGONOMETRIC RATIOS OF MULTIPLE AND SUBMULTIPLE ANGLES-All Questions
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  3. If (pi/4)< theta <(pi/2),then write the value of sqrt(1-sin2theta)

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  7. 8*sin(x/8)*cos(x/2)*cos(x/4)*cos(x/8)=

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  11. If in a Delta ABC, tanA+tanB+tanC=6 then cotA cotB cot C= a.6, b. 1, c...

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  15. If A=2sin^2theta-cos2theta, t h e n A lies in the interval (a)[-1,3] ...

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  16. The value of cos^2(pi/6+theta)-sin ^2\ (pi/6-theta) is (a)dot 1/2cos\...

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  17. The value of (cos3theta)/(2cos2theta-1) is equal to (a) costheta (b) ...

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  18. The value of (2(sin2theta+2cos^2theta-1))/(costheta-sintheta-cos3theta...

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  19. 2(1-2sin^2 7theta)sin3theta is equal to a.\ sin 17theta-sin 11theta b....

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  20. cos(36^@-A)cos(36^@+A)+cos(54^@+A)cos(54^@-A)=cos2A

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