Question

Find the exact value of cos 60+ sin 30+ -tan 45

Answer 1

Ask yourself these questions:
cos 60º = ?
sin30º = ?
tan45º = ?

Answer 2

.5+.5-1=0

Answer 3

Exactly. Do you understand?

Answer 4

yea but i thought exact value meant something in fraction form

Answer 5

can you help me with something else?

Answer 6

Well, in this case:\[\Huge \frac{1}{2}+\frac{1}{2} - 1 = 0\]Still the same.

Answer 7

oh i see!

Answer 8

In a right triangle, CT=6, CA=3 and m< CAT=90. what is the value of cotC?