CBSE BOARD XII, asked by lumika77, 7 months ago

solve if u know.....

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Answers

Answered by ꜱɴᴏᴡyǫᴜᴇᴇɴ
99

Explanation:

Find the values if the trigonometric functions of θ from information given.

tan(θ)=-3/4 , cos(θ)>0

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Note: If tan is negative and cos is positive theta is in QIV where

x is positive and y is negative.

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By definition tan = y/x; Since tan = -3/4, y = -3 and x = 4

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Then r = sqrt(9+16) = 5

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Ans::

sin = y/r = -3/5

cos = x/r = 4/5

tan = y/x = -3/4

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Answered by jtg07
21

Explanation:

tan theta = tan 3π/4

if we anti reverse trigo functions

3π/4 = 135°

===> tan theta = tan 135°

====> tan theta = -1

====> theta = 135°

====> answer is 135 and theta = 135°

♥️♥️@jtg07♥️♥️

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