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Eliminate theta from a cos theta=b and c...

Eliminate `theta` from `a cos theta=b` and `c sin theta=d`, wher a,b,c,d are constants.

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The correct Answer is:
`b^(2)c^(2)+a^(2)d^(2)`
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NCERT TAMIL-TRIGONOMETRY-EXERCISE 3.12
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  10. Which of the following is not true?

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  12. (sin(A-B))/(cosAcosB)+(sin(B-C))/(cosBC)+(sin(C-A))/(cosCcosA) is

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  13. If cos p theta+cos q theta=0 and if p!=q, then theta is equal to (n is...

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  14. If tan alpha and tan beta are the roots of x^(2)+ax+b=0 then (sin (alp...

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  19. A wheel is spinnig at 2 radians/second. How many seconds will it take ...

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  20. If sin alpha+cos alpha=b then sin 2 alpha is equal to

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