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If sin^2x-2sinx-1=0 has exactly four dif...

If `sin^2x-2sinx-1=0` has exactly four different solutions in `x in [0,npi]` , then value/values of `n` is/are `(n in N)` 5 (b) 3 (c) 4 (d) 6

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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Section -G (Integer Answer type questions)
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  4. The smallest value of 3(tan^(2)theta+cot^(2)theta) - 8(tantheta + cott...

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  6. The sum of maximum and minimum values of the expression 5 cosx + 3sin(...

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  7. Let PQ and RS be two parallel chords of a given circle of radius 6 cm,...

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  8. If 3 tan theta tan phi=1, then (cos (theta-phi))/(cos (theta+phi)) is

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  9. The number of solutions of (81)^(sin ^2 x) + (81)^( cos^2x )=30 for x ...

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  10. If a , b in [0,2pi] and the equation x^2+4+3sin(a x+b)-2x=0 has at lea...

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  11. If sin^2x-2sinx-1=0 has exactly four different solutions in x in [0,np...

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  12. In right angled triangle ABC, if AB=AC, then value of |R/r| (value [X]...

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  13. In right angled triangle ABC, if AB=AC, then value of |R/r| (value [X]...

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  14. In a triangleABC, bc=a, a=2, the value of 2DeltaR is equal to

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  15. In a triangle ABC with usual notation b cosec B=a, then value of (b +...

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  16. In a triangle ABC, 2B= A + C and b^(2) = ac, then (a(a+b+c))/(3bc) is

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  17. In an equilateral triangle with usual notations the value of (27r^(2)R...

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  18. In a triangle ABC, (c cos(A-theta) + acos (C + theta))/(b costheta) is...

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