67.5 divided by 11.25 equals 6 so you made 6 costumes
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
• tan²x + 1 = sec²x
⇒ tan²x - sec²x = - 1
Thus the derivative reduces to
( - 1 ) = 0
7/8= 0.875
no rounding necessary