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∆ ABC is right angled at B. If m∠A = 30°., then Se - Exam Yatra

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∆ ABC is right angled at B. If m∠A = 30°., then Sec C =?

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EXPLANATION

B = 90° A = 30° then C = 60° (\because A+B+C = 180∵A+B+C=180&de...
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