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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -TEXTBOOK ILLUSTRATIONS FOR PRACTICE WORK
- Prove that, 3sin""(pi)/(6)sec""(pi)/(3)-4sin""(5pi)/(6)cot""(pi)/(4)=1
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- Find the value of sin15^(@).
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- Find the value of tan""(13pi)/(12)
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- Prove that, (sin(x+y))/(sin(x-y))=(tanx+tany)/(tanx-tany)
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- Show that, tan3xtan2xtanx=tan3x-tan2x-tanx.
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- Prove that, cos((pi)/(4)+x)+cos((pi)/(4)-x)=sqrt(2)cosx.
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- Prove that, (cos7x+cos5x)/(sin7x-sin5x)=cotx
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- Prove that, (sin5x-2sin3x+sinx)/(cos5x-cosx)=tanx
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- Find the principal solutions of the equation sinx=sqrt(3)/(2).
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- Find the principal solutions of the equation tanx=-(1)/(sqrt(3)).
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- Find the solution of sinx=-(sqrt(3))/(2).
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- Solve cosx=(1)/(2).
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- Solve tan2x=-cot(x+(pi)/(3)).
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- Solve sin2x-sin4x+sin6x=0.
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- Solve 2cos^(2)x+3sinx=0.
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- In triangle ABC, prove that, tan((B-C)/(2))=(b-c)/(b+c)cot((A)/(2)) ...
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- In any triangle ABC, prove that asin(B-C)+bsin(C-A)+csin(A-B)=0.
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- The angle of elevation of the top point P of the vartical tower PQ of ...
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- A lamp post is situated at the middle point M of the side AC of a tria...
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- If sinx=(3)/(5),cosy=-(12)/(13), where x and y both lie in second quad...
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