Question

If cos 0 = 0.6, find the value of 5 sin 0 - 3 tan .


​

Answer 1

Answer:

1

Step-by-step explanation:

given,

cos 0 is 0.6

sin 0 is ?

we use the trigonometric identity ->(1)

sin^2 theta +cos^2theta is 1

cos theta is 0 .6

sin theta is (1-cos ^2theta)^1/2

sin theta is 0.8

tan theta is (sin theta)/cos theta

tan theta is 4/3

sin theta is 4/5

cos theta is 3/5

5 sin theta -3 tan theta

5(4/5)-3(4/3)

4-3=1