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The elimination of theta from x cos thet...

The elimination of `theta` from `x cos theta+ysin theta=2` and `xsin theta-y cos theta=4` will give:
`x cos theta-ysin theta=2` and `xsin theta-y cos theta=4` से `theta` का निष्काषित करने पर क्या मिलेगा

A

`3x^2-y^2=20`

B

`x^2+y^2=20`

C

`3x^2+y^2=20`

D

`x^2-y^2=20`

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  9. If sin(A-B) =1/2 and cos(A+B) =1/2, where A>B>0^@, and A+B is an acute...

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  12. Find the value of (Cos30^@-sin30^@)/ (Sin60^@+Cos60^@) (Cos30^@-sin3...

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  13. If sec^2 x-3secx+2=0, then the value of x (0<x<90^@) is: यदि sec^2 ...

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  14. If cosec theta +cot theta=2, then Sin theta is: यदि cosec theta +co...

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  15. (sin theta +cos theta )^2=2, 0^@< theta <90^@, then the value of theta...

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  16. If cosecA =25/7, then what is the value of Tan A? यदि cosecA =25/7,...

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  18. If cot theta =80/39, find the value of cosec theta. यदि cot theta =8...

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  19. If sin theta =4/5, find the vlaue of sin3 theta . यदि sin theta =4/5...

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  20. If tan a=2/sqrt13, then the value of (cosec^2 a+2sec^2 a)/(cosec^2 a-3...

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