Help this is all I was given 7*f(5)=

Simplifying
7f(5) = 0

Reorder the terms for easier multiplication:
7 * 5f = 0

Multiply 7 * 5
35f = 0

Solving
35f = 0

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by '35'.
f = 0

Simplifying
f = 0

  The ratios are both identical ( 3 over 5 and 3 over 5 )

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that ...

  Sin = Opposite/Hypotenuse

  sin(x°) = 3/5

and

  Cos = Adjacent/Hypotenuse

  cos(y°) = 3/5

__

  sin(x°) = cos(y°) = 3/5