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Find the ratio of sides of a 30^@-60^@-9...

Find the ratio of sides of a `30^@-60^@-90^@ ` triangle

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Select the correct option from the given alternatives: The ratio of the sides of a 30^@-60^@-90^@ triangle is : A) 1:sqrt3:2 B) 2:2sqrt3:1 C) sqrt3:sqrt3:2 D) 1:2:5

Find the value of sin 30^(@)+cos 60^(@)

In triangle ABC , /_A=50^@ , /_B=90^@ and /_C=40^@ . Then write the ratio of cos 40^@ in terms of sides of triangle ABC .

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In triangle ABC , /_A=50^@ , /_B=90^@ and /_C=40^@ . Then write the ratio of tan 50^@ in terms of sides of triangle ABC .

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CHETANA PUBLICATION-Trignometric Functions-EXERCISE
  1. In /\ABC, show that bcos^2(frac{C}{2})+c cos^2(frac{B}{2}) = s

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  2. Find the polar coordinates of a point whose cartesian coordinates are ...

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  3. Find the ratio of sides of a 30^@-60^@-90^@ triangle

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  4. In /\ABC, a=2, b=3 and sinA = frac{2}{3}, find B

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  5. In /\ABC, a=2, b=3, c=4, prove that the triangle is obtuse angled.

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  6. In /\ABC A = 60^@, b=3, c=8, find a

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  7. In /\ABC, A = 60^@, a=7, find circum radius

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  8. In /\ABC, if a=13, b=14, c=15 then find the value of: cosA

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  9. In /\ABC, if a=13, b=14, c=15 then find the value of: sin(frac{A}{2})

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  10. In /\ABC, if a=13, b=14, c=15 then find the value of: cos(frac{A}{2})

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  11. In /\ABC, if a=13, b=14, c=15 then find the value of: tan(frac{A}{2})

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  12. In /\ABC, if a=13, b=14, c=15 then find the value of: A(/\ABC)

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  13. In /\ABC, if a=13, b=14, c=15 then find the value of: sinA

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  14. In /\ABC, prove that cot(frac{A}{2})+cot(frac{B}{2})+cot(frac{C}{2}) =...

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  15. Find the principal values of the following: sin^-1(frac{1}{sqrt2})

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  16. Find the principal values of the following: cos^-1(frac{sqrt3}{2})

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  17. Find the principal values of the following: cot^-1(frac{1}{sqrt3})

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  18. Find the principal values of the following: sec^-1(2)

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  19. Find the principal values of the following: cosec^-1(sqrt2)

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  20. Find the principal values of the following: tan^-1(-1)

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