I think a would be 115 degrees. B would be 71 degrees. I think the second question would be c.
Answer:
-3.75
Step-by-step explanation:
the opposite changes the sign from positive to negative, so the opposite of 3.75 would be -3.75
Answer:
cos210=cos(180+30)=−cos30=−√32 . sin210=sin(180+30)=−sin30=−12 . 3(cos210+isin210) =3(−√32)+3i(−12). −(32)√3−(32)i. My favourite way of seeing that sin30=12 and cos30=√32 is ...
Step-by-step explanation:
But that's what I say personally
Given:

To verify:
for the given values.
Solution:
We have,

We need to verify
.
Taking left hand side, we get


Taking LCM, we get




Taking right hand side, we get



Taking LCM, we get


Now,

Hence proved.
Answer:
It's like adding whole numbers, but with a dot. add 75+75=150
Because 150 is more than 100, you add the 1 to the whole numbers, the 6 and the 3. Add 3+6+1=10
So your answer is 10.5