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Prove the following:sin(150^@+x)+sin(150...

Prove the following:`sin(150^@+x)+sin(150^@-x)=cosx`

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JBD PUBLICATION-TRIGNOMETRIC FUNCTIONS-EXAMPLE
  1. Show tha: cos6A=32cos^6A-48cos^4A+18cos^2A-1

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  2. Prove the following: (sin5x + sin 3x)/(cos5x + cos3x)=tan4x

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  3. Prove the following:sin(150^@+x)+sin(150^@-x)=cosx

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  4. Prove that sin51^(@)+cos81^(@)=cos21^(@) .

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  5. Show that: sn10^@+sin20^@+sin40^@+sin50^@=sin70^@+sin80^@

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  6. Find the principal solutions (0 le x le 2pi) of the following euqtions...

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  7. Find the principal solutions (0 le x le 2pi) of the following euqtions...

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  8. Find the principal and general solutions of the following equation:- t...

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  9. Find the principal and general solutions of the following equation:- s...

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  10. Find the general solution of the following equations: cos 4 x = cos 2x

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  11. Find the general solutions of the equations sinx+sin3x+sin5x=0.

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  12. Find the general solution of the following equations: cos 4 x = cos 2x

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  13. An athlete runs 4 times around a circular running a path to describe 1...

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  14. Prove that: cot^2frac (pi)(6)+cosecfrac (5pi)(6)+3tan^2frac (pi)(6)=6

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  15. In triangleABC, prove that cos(A+B)+cosC=0

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  16. In triangleABC, prove that cos((A+B)/(2))=sinC/2

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  17. Prove the following: cos((3pi)/2+x)cos(2pi+x)[cot((3pi)/2-x)+cot(2pi+x...

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  18. If tan alpha= (m)/(m+1) and tan beta=(1)/(2m+1), the find the value o...

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  19. If tan(alpha+theta)=ntan(alpha-theta), show that:(n+1)sin 2theta=(n-1)...

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  20. Prove that:(1+sin2x-cos2x)/(1+sin2x+cos2x)=tanx

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