Question

find the value of 5cos2 60+4sec2. 30-tan2. 45/sin 2 30 +cos2 30​

Answer 1

Step-by-step explanation:

Substitute the values of specific angles:

5(1/2)²+4(2/✓3)²-(1)²/(1/2)²+(✓3/2)²

=5/4+16/3-1/1/4+3/4

=60+192-12/12/1

=252-12/12/1

=240/12/1

=20.

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Answer 2

Answer:

answer attached in photo