First question: -2
Answer: 2(cos 180° + i sin 180°)
2(-1 + i 0) = -2
Second question: -2i
Answer: 2(cos 270° + i sin 270°)
2(0 + i (-1)) = -2i
Answer:
he is correct
Step-by-step explanation:
6+9 = 15
15 divided by 3 = 5
5 x 7 = 35
Use the power, product, and chain rules:
• product rule
• power rule for the first term, and power/chain rules for the second term:
• power rule
Now simplify.
You could also use logarithmic differentiation, which involves taking logarithms of both sides and differentiating with the chain rule.
On the right side, the logarithm of a product can be expanded as a sum of logarithms. Then use other properties of logarithms to simplify
Differentiate both sides and you end up with the same derivative:
6w-y=2z
6w=y+2z
w=(y+2z)/6
Hope this helps!