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प्रश्न
Answer the following:
Find the trigonometric functions of :
270°
उत्तर
Angle of measure 270° :
Let m∠XOA = 270°
Its terminal arm (ray OA) intersects the standard unit circle at P(0, – 1).
∴ x = 0 and y = – 1
sin 270° = y = – 1
cos 270° = x = 0
tan 270° = `y/x`
= `-1/0`, which is not defined
cosec 270° = `1/y`
= `1/(-1)`
= – 1
sec 270° = `1/x`
= `1/0`, which is not defined
cot 270° = `x/y = 0/(-1)` = 0
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