Answer:
See Explanation Below
Step-by-step explanation:
Given
Required
Prove
To start with; we open the bracket on the left hand side
Reorder
From trigonometry;
So;
becomes
Also from trigonometry;
So,
becomes
Proved
Number 1 is C.
Number 2 is C.
Did you need all of them?
Answer:
1,215 i think please be right
(B) but if there is another answers let me see cuz all i see is a and b
Answer:
0
Step-by-step explanation:
x=1 and y=-3
so 3x^2 + y = 3*1^2 + (-3)
= 3* 1 -3
=0