Answer:

Step-by-step explanation:


Answer: cos²(θ) + sin(θ)sin(e)
<u>Step-by-step explanation:</u>
sin (90° - θ)cos(Ф) - sin(180° + θ) sin(e)
Note the following identities:
sin (90° - θ) = cos(x)
sin (180° + θ) = -sin(x)
Substitute those identities into the expression:
cos(x)cos(x) - -sin(x)sin(e)
= cos²(x) + sin(x)sin(e)
Answer:
88.1
Step-by-step explanation:
Answer:
z = 6/13
Step-by-step explanation:
The new value of x is 13/3 times the old value. Since z is inversely proportional to x, it will be multiplied by the inverse of that, 3/13.
2 × 3/13 = 6/13 . . . . value of z when x=13
Answer: C. 8
Step-by-step explanation: