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If acostheta-b sintheta =c; prove that a...

If `acostheta-b sintheta =c`; prove that `a sin theta + b costheta = pmsqrt(a^2+b^2-c^2)`

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If a cos theta-b sin theta=c; prove that a sin theta+b cos theta=+-sqrt(a^(2)+b^(2)-c^(2))

If a cos theta - b sin theta = c, prove that a sin theta + b cos theta = pm sqrt(a^(2) + b^(2) - c^(2)) .

If a cos theta - b sin theta =c , then prove that a sin theta + b cos theta = +- sqrt(a^(2) + b^(2) - c^(2))

If a cos theta-b sin theta=c, show that a sin theta+b cos theta=+-sqrt(a^(2)+b^(2)-c^(2))

If acostheta-bsintheta=c , then prove that: asintheta+bcostheta=+-sqrt(a^(2)+b^(2)-c^(2))

If a cos theta-b sin theta=c, show that a sin theta+b cos theta=+-sqrt(a^(2)+b^(2)+c^(2))

If acostheta+bsintheta=c , then prove that: asintheta-bcostheta=+-sqrt(a^(2)+b^(2)-c^(2))

If a cos theta-b sin theta=c, then a sin theta+b cos theta=+-sqrt(a^(2)+b^(2)+c^(2))(b)+-sqrt(a^(2)+b^(2)-c^(2))(c)+-sqrt(c^(2)-a^(2)-b^(2))(d) None of these

If a sin theta+b cos theta=c then prove that a cos theta-b sin theta=sqrt(a^(2)+b^(2)-c^(2))

Ifa sin theta+b cos theta=C, then prove that a cos theta-b sin theta=sqrt(a^(2)+b^(2)-c^(2))

MODERN PUBLICATION-TRIGONOMETRY-Revision Exerise
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  2. If "sin" x + "sin"^(2) x = 1 show that: cos^(4)x + cos^(2)x = 1 ...

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  3. If acostheta-b sintheta =c; prove that a sin theta + b costheta = pmsq...

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  4. Prove that"sin"(pi)/(14)"sin"(3pi)/(14)"sin"(5pi)/(14)"sin"(7pi)/(14)=...

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  5. Prove that: cos^2A+cos^2(A+pi/3)+cos^2(A-pi/3)=3/2

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  7. If at a nalpha+bt a nbeta=(a+b)tan((alpha+beta)/2) , where alpha!=beta...

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  8. If alphaa n dbeta are the solutions of acostheta+bs intheta=c , then s...

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  9. If alpha and beta are the solution of the equation, a tantheta+bsecth...

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  14. If A+B+C = pi prove that cos 4A + cos 4B + cos 4C = -1 + 4 cos 2A co...

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  15. If A+B+C=pi, prove that : sin, (B+C)/(2) + sin, (C+A)/(2) + sin, (A+B)...

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  16. If A + B + C = 180^(@) prove that: (i) "sin" (B+C-A) + "sin"(C+ A-B)...

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  18. If A + B + C + D = 2pi, prove that: cos A + cos B + cos C + cos D =...

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  19. If x+y+z=x y z prove that (2x)/(1-x^2)+(2y)/(1-y^2)+(2z)/(1-z^2)=(2x)/...

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