If D = w^2 - 7 and C = 3 + 10w , find an expression that equals D - C standard form.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

ok so what's the question?

step-by-step explanation:

hello there!

i believe the answer is

(cot2+1)/sec2=cot2

    csc2/sec2=cot2

  (1/sin2)/(1/cos2)=cot2

  (1/sin2)(cos2/1)=cot2

  cos2/sin2=cot2

  (1/tan2)=cot2

  (cot2)=(cot2)

hope this !

hyperz ^_^