Question

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3. I sin A
calculate cos A and tan A.
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4​

Answer 1

Answer:

CosA =0.994

tanA =0.10

Step-by-step explanation:

Given

SinA =0.1

sin =1/10

let assume triangle ABC

AB=1cm

AC=10

using pythagoras theorem

AC²=AB²+BC²

100=1+ BC

9.94= BC

(i) CosA= 9.94/10

= 0.994

(ii) tanA=1/9.94

=0.10