Answer:
see explanation
Step-by-step explanation:
Using the sum/ difference → product formula
cos x - cos y = - 2sin(
)sin (
)
sin x - sin y = 2cos (
)sin (
)
Given
(cosA - cosB)² + (sinA - sinB )²
= [ - 2sin(
)sin(
) ]² + [ 2cos(
)sin(
) ]²
= 4sin² (
)sin² (
) + 4cos² (
)sin² (
)
= 4sin² (
)[ sin² (
) + cos² (
) ← sin²x + cos²x = 1
= 4sin² (
) × 1
= 4sin² (
) = right side ⇒ proven
I hope this helps and i hope wecan be great friends!!!!! and corrrect me if wrong but i think its A!!!!!!!!
~ 12 year old kakashi hatake
M=e/c2
U just divide e=mc2 by c2 on both sides to isolate m
400 - 3x = 163
Add 3x to both sides.
400 = 163 + 3x
Subtract 163 to both sides.
237 = 3x
237/3 = 79
Answer:
160
Step-by-step explanation:
70% of 160=112.
A handy trick is to divide the number by the percentage.
Brainliest please I need those points.