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If cos 2theta=(sqrt(2)+1)(cos theta-(1)/...

If `cos 2theta=(sqrt(2)+1)(cos theta-(1)/(sqrt(2)))`, then the general value of `theta(n in Z)`

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`2npi +- pi/4` or `2npi +- pi/3`
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AAKASH INSTITUTE ENGLISH-TRIGNOMETRIC FUNCTIONS -Section I (subjective Type questions)
  1. Solve 4cot2theta=cot^2theta-tan^2theta

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  2. If 3tan(theta-15^0)=tan(theta+15^0)0<theta<90^0 , find theta .

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  3. If cos 2theta=(sqrt(2)+1)(cos theta-(1)/(sqrt(2))), then the general v...

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  4. Solve the equation sin^(2)ntheta - sin^(2)(n-1)theta = sin^(2)theta

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  5. Solve the equation tan x + (cosx)/(sqrt(1+sin2x))=2.

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  6. Let x and y, (0 lt x, y lt pi/2) satisfy 3sin^(2)x + 2sin^(2)y=1 and 3...

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  7. If angles A and B satisfy sqrt(2)cosA = cosB + cos^(3)B and sqrt(2)sin...

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  8. Let the sum of all solutions of the equation 3sqrt(3) sin^(3)x + cos^...

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  9. Solve the equation, 4^(sin2x + 2cos^(2)x+ 2sin^(2)x)=64.

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  10. If the equation sin6x + cos4x=-2 have a family of nonnegative solution...

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  11. Find all values of x, y and k for which the system of equations. sin...

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  12. Solve for x and y if sqrt(sinx cosy)=0 and 2sin^(2)x - cos2y-2=0

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  13. In a triangle ABC, if the median and altitude from A trisect angle A, ...

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  14. In a right angled triangle ABC, if r(in radius)=7 cm and R(Circumradiu...

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  15. The two adjacent sides of a cyclic quadrilateral are 2a n d5 and the a...

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  16. In a triangle ABC, perpendicualr distance of BC from the point of inte...

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  17. In a triangleABC, if 1/r^(2) + 1/r(1)^(2) + 1/r(2)^(2) + 1/r(3)^(2) = ...

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  18. The radius of the circle touching two sides AB and AC of a triangle AB...

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  19. Find the cubic equation whose roots are the radius of three inscribed ...

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  20. Let A(1)A(2)A(3)………………. A(14) be a regular polygon with 14 sides inscr...

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