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In DeltaABC, C=90^(@), A=30^(@), b=6, fi...

In `DeltaABC, C=90^(@), A=30^(@), b=6`, find the remaining elements of the triangle.

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`angleA=90^(@)`
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NAGEEN PRAKASHAN-TRIGNOMETRIC FUNCTIONS-EXERCISES 3N
  1. In DeltaABC, prove that: acosA+bcosB=(c)cos(A-B)

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  2. In DeltaABC, prove that: asinA-bsinB=csin(A-B

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  3. In DeltaABC, C=90^(@), A=30^(@), b=6, find the remaining elements of t...

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  4. In DeltaABC, prove that: sin(B-C)/(2)=(b-c)/(a).cosA/2

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  5. In DeltaABC, if a=2, b=3, c=4, find cosA.

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  6. If in DeltaABC, a=4,b=6,c=8 then 2cosA+4cosB+cosC=

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  7. In DeltaABC, if a=6, b=8, c=10, evaluate cos2A.

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  8. In DeltaABC, if b=7, c=24, a=25, find angleA.

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  9. In DeltaABC, a:b:c=15:7:13, find cosA.

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  10. A triangle side are few 7 cm, 4sqrt3 cm and sqrt(13) cm then the smal...

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  11. In DeltaABC, a=x^(2)-1, b=2x+1, angleC=120^(@), find c.

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  12. In DeltaABC, prove that: a(cosB+cosC)=2(b+c)sin^(2)A/2.

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  13. In DeltaABC, prove that: b(cosA-cosC)=2(c-a)cos^(2)B/2

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  14. In DeltaABC, prove that: a/(b+c)=(1-tanB/2tanC/2)/(1+tanB/2tanC/2)

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  15. In DeltaABC, prove that: a^(2)sin2B+b^(2)sin2A=2absinC

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  16. If any triangle A B C , that: (asin(B-C))/(b^2-c^2)=(bsin(C-A))/(c^2-...

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  17. In DeltaABC, prove that: c(acosB-b cosA)=a^(2)-b^(2)

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  18. In DeltaABC, prove that: (a^(2)sin(B-C))/(sinA) + (b^(2)sin(C-A))/(s...

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  19. In DeltaABC, cosC=(sinA)/(2sinB), prove that b=c.

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  20. In triangleABC, cosA=sinB-cosC,prove that DeltaABC, is right angled.

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