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3. I sin A
calculate cos A and tan A.
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4
Answers
Answered by
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
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