trigonometry function of -3π/4
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Trigonometric function are also known as a circular functions can be defined the function of an angle of a triangle .The basic trigonometric function are since , cosine, tangent, cotangent, secant and cosecant
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sin theta= 1/√2
cos theta = -1/√2
tan theta = -1
cosec theta = √2
sec theta = -√2
cot theta = -1
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