Evaluate 3/2y-3+5/3z when y =6 and z =3
2 answers:
Answer:
The result is 11
Step-by-step explanation:
For solving the problem, we must replace the values of y and z into the expression, then we must apply the corresponding operators such as addition, subtraction, division and multiplication. It is assumed that the expression is as follows:
If we replace the values of y and z, we get:
The first term equals 9
The second term is 3
The third term equals 5
The expression would be:
The result of the expression is 11
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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