Math, asked by Aysha3107, 7 months ago

value of cos 420 in fraction

Answers

Answered by Anonymous

1

Step-by-step explanation:

cos(420) = cos(2×210)

that mean cos(420) lie on positive x-axis

hence, its value is 1.

Answered by atharv2303

5

Answer:

Cos (420) = cos (360 +60)

= cos (60)

=1/2

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