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Find the roots of the equation x^2+7x-1...

Find the roots of the equation `x^2+7x-1=0`

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VMC MODULES ENGLISH-TRIGONOMETRIC IDENTITIES AND EQUATIONS -LEVEL -2
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  2. in any triangle ABC, which is not right angled Sigma cosA.cosecB.cosec...

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  3. If P(n) = cos^(n)theta +sin^(n)theta, then P(2) - P(1) is equal to :

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  4. If tan^(2)x+secx -a = 0 has atleast one solution, then complete set of...

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  5. 1/2tan(alpha/2)+1/4tan(alpha/4)+1/8tan(alpha/8)....1/2^ntan(alpha/2^n)...

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  6. Suppose sin^3xsin3x=sum(m=0)^n Cmcosm x is an identity in x , where ...

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  7. Find the ratio of greatest value of 2-cos x+ sin^(2)x to its least val...

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  8. Find the number of solution for , sin 5 theta * cos 3 theta = sin 9 th...

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  9. Find the roots of the equation x^2+7x-1=0

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  10. If (1+tan1^(@)) *(1+tan2^(@))*(1+tan3^(@)) …….(1+tan45^(@)) = 2^(n), t...

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  11. In a DeltaPQR, if 3 sin P+4 cos Q=6 and 4 sin Q+3 cos P=1, then the an...

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  12. If U(n) = sin n theta*sec^(n)theta, V(n) = cosntheta*sec^(n)theta for ...

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  13. If sinx+cosx+tanx+cotx+secx+cosecx = 7 and sin2x = a-bsqrt2, then orde...

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  14. If sin^2A=x , then sinAsin2Asin3Asin4A is a polynomial in x , the sum ...

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  15. 1/(cosalpha+cos3alpha)+1/(cosalpha+cos5alpha)....1/(cosalpha+cos(2n+1)...

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  16. Range of f(x)=log(sqrt(5))(sqrt(2))(sinx-cosx)+3) is

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  17. The equation 3^("sin"2x + 2"cos"^(2)x) + 3^(1-"sin"2x +2"sin"^(2)x) = ...

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  18. Solve the equation 4^(sin 2x+2 cos^2 x)+4^(1-sin 2 x+2 sin^2 x)=65

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  19. If sec theta= x+1/(4x) then sec theta+ tan theta= (a) x, 1/(x), (b) 2x...

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  20. If sin[(pi)/(4)cottheta] = cos[(pi)/(4)tantheta] then theta can be :

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