Expand the left side:

The Pythagorean identity tells us

so we get

as needed.
Answer: 1. <u><em>77.31961650818018</em></u> 2. <u><em>16.26020470831196</em></u> 3. <em><u>75.7499673021964</u></em> 4. <em><u>31.89079180184571</u></em> 5. <em><u>67.38013505195958</u></em> 6. <em><u>28.072486935852954</u></em>
Step-by-step explanation:
I used a right triangle calculator!
Answer:
(-2x^3)+(9x^2)
Step-by-step explanation:
Answer is above. Hope it helps!
Answer:
in this case we have two variables x and y
1. with respect to d/dx(x^2y)--> 2xy
2. with respect to d/dy(x^2y) --> x^2