Math, asked by raushanals, 5 months ago

if cos theta is equal to 4 upon 5 then 10 theta is equal to?

Answers

Answered by ayankhan9166

1

Step-by-step explanation:

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Answered by ansh65932

2

Answer:

tanA=3/4

Step-by-step explanation:

cos theta =4/5

secA=1/cosA

=5/4

sec^2A=(5/4)^2

=25/16

tan^2A=sec^2A-1

=25/16-1

=9/16

tanA=3/4

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