Question

if sinA=0.1 , calculate CosA and tanA.


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Answer 1

Answer:

i.  cos A = 0.994

ii. tan A = 0.10

Step-by-step explanation:

Given,

sin A = 0.1

sin A = 1/10

Let's assume the triangle to be ABC.

AB = 1cm

AC = 10 cm

Using Pythagoras Theorem,

AC² = AB²+BC²

= 100 = 1+BC²

= 99 = BC²

= 9.94cm = BC

i. cos A = 9.94/10

= 0.994

ii. tan A = 1/9.94

= 0.10

Hope this helps.