Question

31Given that tand 3.457 where << find the values of sine and cose. If necessary, round to 32decimal places

Answer 1

Answer:

cos θ = - 0.278

sin θ = - 0.961

Explanation:

We use the relation that

$\tan \theta=\tan \pi+\theta$

Now, we evalaute the following using a calculator

$\theta=\tan ^{-1}3.457$$\theta=1.2892141$$\therefore\theta^{\prime}=\theta+\pi=4.430806765$

The above is the angle between pi and 3pi /2.

Now

$\cos 4.43086=-0.278$

and

$\sin 4.4308.6=-0.961$

which are our answers!