English, asked by Sriyaayush, 8 months ago

What is the value of sin 480.sec 420 + cos 480.cosec 420

Answers

Answered by Amannamdev28

0

Explanation:

sin(450+30) sec (450-30) + cos (450+30) cosec (450-30)

cos 30 cosec 30 - sin 30 sec 30

√3/2 * 2 - 1/2* 2/√3

2/√3

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