Math, asked by kaushikarpit03, 7 months ago

यदि sec 4A =cosec (A-20°), जहां 4A एक न्यून कोण है,
तो A का मान ज्ञात कीजिए।
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Answers

Answered by lborkataky
2

use cosec(90-A)=SecA

so

sec 4A=sec(90-A+20)

4A=110-A

5A= 110

A=22

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