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The equation sin^4x-2cos^2x+a^2=0 can be...

The equation `sin^4x-2cos^2x+a^2=0` can be solved if

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CENGAGE PUBLICATION-TRIGONOMETRIC FUNCTIONS-All Questions
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  2. If the angle A ,Ba n dC of a triangle are in an arithmetic propression...

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  3. The equation sin^4x-2cos^2x+a^2=0 can be solved if

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  4. Value of (3+cot80^0cot20^0)/(cot80^0+cot20^0) is equal to (a)cot20^0...

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  5. Let A B C be a triangle such that /A C B=pi/6 and let a , b and c deno...

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  6. If tanalpha is equal to the integral solution of the inequality 4x^2-...

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  7. Consider the system of linear equations in x , ya n dz : ""(sin3theta...

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  8. Let A B C D be a quadrilateral with area 18 , side A B parallel to the...

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  9. The number of ordered pairs which satisfy the equation x^2+2xsin(x y)+...

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  10. Let alpha,beta be such that pi lt alpha-beta lt3 pi. If sin alpha+ sin...

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  11. Let A0A1A2A3A4A5 be a regular hexagon inscribed in a circle of unit ra...

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  12. If alpha=pi/(14), then the value of (tanalphatan2alpha+tan2alphatan4al...

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  13. The equation (cosp-1)x^2+(cos p)x+sin p=0 in the variable x has real...

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  14. In A B C , the median A D divides /B A C such that /B A D :/C A D=2:1...

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  15. If 0lt=xlt=2pia n d|cosx|lt=sinx , then (a) then set of all values of...

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  16. (sin3theta+sin5theta+sin7theta+sin9theta)/(cos3theta+cos5theta+cos7the...

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  17. In a triangle, the lengths of the two larger sides are 10 and 9, res...

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  18. If x , y , z are in A.P., then (sinx-sinz)/(cosz-cosx) is equal to

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  19. The expression cos3theta+sin3theta+(2sin2theta-3)(sintheta-costheta) i...

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  20. There exists a triangle A B C satisfying the conditions (A) bsinA = ...

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