Math, asked by berylkraj123, 6 months ago

Find:- cos 49° 20'​

Answers

Answered by asmahuzi786
1

Answer:

usecos(900−θ)=sinθ

therefore(cos490tan410)=(cos(900−410)tan410)

=(sin410tan410)=(cos410×sin410sin410)

=sec410=cosec490

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