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Which of the following is true? pi/3>tan...

Which of the following is true? `pi/3>tan^(-1)pi/3` (b) `pi/3cos^(-1)pi/4`

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Which of the following is true? (pi)/(3)>tan^(-1)(pi)/(3) (b) (pi)/(3) cos^(-1)(pi)/(4)

Evaluate each of the following: sin^(-1)(sin(pi)/(3)) (ii) cos^(-1)(cos(2 pi)/(3))tan^(-1)(tan(pi)/(4))(iv)sin^(-1)(sin(2 pi)/(3))cos^(-1)(cos(7 pi)/(7))(vi)tan^(-1)(tan(3 pi)/(4))sin^(-1)(cos(-600^(@))cos^(-1)(cos(-680^(@)))

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Show / Prove/ Verify the following : (sin^(2)""(pi)/(6)+cos^(2)""(pi)/(3)+tan^(2)""(pi)/(6))/(sec^(2)""(pi)/(4)-cos^(2)pi)=(1)/(3).cos""(pi)/(3)+(1)/(sqrt3)sec""(pi)/(6)

sin^(2)pi/6+cos^(2)pi/3-tan^(2)pi/4=-1/2

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