Math, asked by verma5172, 8 months ago

What is the value of the cos(900°)

Answers

Answered by Anonymous

11

900 degrees will lie in the same quadrant as 180 degrees, because on adding integral multiples of 360 degrees, the quadrant remains the same

Since, 180 degrees lies in quadrant 2 wherein the value of all cosines is negative, we have,

cos(180)=cos(180+0)= -cos0= -1

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