Math, asked by isha161614, 1 year ago

if sec 4A is equals to cosec bracket A minus 15 degree bracket then find the value of A

Answers

Answered by Abida6786

3

sec4A=cosec(A-15)

sec4A=sec(90-A+15)

4A+A=105

5A=105

A=105/5

A=21

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