a - 4b
= (-7) - 4(2)
= - 7 - 8
= <u>-</u><u> </u><u>1</u><u>5</u><u>.</u>
Hope it helps ya :))
Answer:
I think it's 4y
Step-by-step explanation:
I think it's 4y is because if y = 0 they all work but 4y which is 0 while all the others are 4
The answer is obviously three.
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identity
• tan²x + 1 = sec²x
⇒ tan²x - sec²x = - 1
Thus the derivative reduces to
( - 1 ) = 0