How do you find the value of cotπ4?
Calculate the value of trigonometric ratio at given angle:
Let x be the value of cotπ4.
∴x=cotπ4
We know that π=180°
=cot180°4
=cot45°
=cos45°sin45° [∵cotθ=cosθsinθ]
=1212 [∵sin45°=12;cos45°=12]
=1
Hence, the value of cotπ4 is 1.
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