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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -EXERCISE 3.5
- If any triangle ABC, a=18,b=24,c=30 cosA,cosB,cosC
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- If any triangle ABC, a=18,b=24,c=30 sinA,sinB,sinC
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- For any triangle ABC, prove that : (a+b)/(c)=(cos((A-B)/(2)))/(sin""...
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- For any triangle ABC, prove that : (a-b)/(c )=(sin((A-B)/(2)))/(cos(...
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- For any triangle ABC, prove that : sin""(B-C)/(2)=(b-c)/(a)cos((A)/(...
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- For any triangle ABC, prove that : a(bcosC-c cosB)=b^(2)-c^(2)
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- For any triangle ABC, prove that : a(cosC-cosB)=2(b-c)cos^(2)""(A)/(...
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- For any triangle ABC, prove that : (sin(B-C))/(sin(B+C))=(b^(2)-c^(2...
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- For any triangle ABC, prove that : (b+c)cos((B+C)/(2))=acos((B-C)/(2...
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- For any triangle ABC, prove that : acosA+bcosB+c cosC=2asinBsinC
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- For any triangle ABC, prove that : (cosA)/(a)+(cosB)/(b)+(cosC)/(c)=...
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- For any triangle ABC, prove that : (b^(2)-c^(2))cotA+(c^(2)-a^(2))co...
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- For any triangle ABC, prove that : ((b^(2)-c^(2))/(a^(2)))sin2A+((c^...
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- A tree stands vertically on a hill side which makes an angle of 15^(@)...
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- Two ships leave a port at the same time. One goes 24 km per hour in th...
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- Two trees A and B are the same side of a river. From point c in the ri...
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