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Question

How do you find the value of cot90°?


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Solution

Calculate the value of trigonometric ratio at given angle:

Let x be the value of cot90°.

x=cot90°

=cos90°sin90° [cotθ=cosθsinθ]

=01 [sin90°=1;cos90°=0]

=0

Hence, the value of cot90° is 0.


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