Question

Write the trigonometric expression in terms of sine and cosine, and then simplify.

Tan(degree)/ Sec(degree)- Cos(degree)

Answer 1

1: cos x
2. sin x
3. cot x
4. 1

Answer 2

I don't understand what you wrote.

Answer 3

Ok, I simplify it! Cos is the degree sec is degree tan degree! Each are = to x

Answer 4

What would the answer be? I'm so confused, I'm sorry.

Answer 5

Oh no your fine I understand what you mean... The answer is. 1

Answer 6

Tan(x) = Sin(x) / Cos(x)
Sec(x) = 1/Cos(x)
=>
Tan(x)/Sec(x) - Cos(x) = (Sin(x)/Cos(x))/(1/Cos(x) - Cos(x)
=> multiplying numerator & denominator by Cos(x) we get
Tan(x)/Sec(x)-Cos(x) = Sin(x)/1 - cos(x) = sin(x) - cos(x)

Assumption: Cos(x) != 0

Answer 7

Wait I looked at this again, its eather 0 or 1.