Given:
Consider the expression is
To find:
The value of given expression using a suitable identity.
Solution:
We have,
Using the identity , we get
Therefore, the value of the given expression is .
Answer: To use with subtituting you need two numbers.
Step-by-step explanation:
Divide 2480 by 3 and multiply that by two
Basic trig concepts you have to keep in mind:
SOH CAH TOA
Sine: Opposite of the angle over the hypotenuse
Cosine: Adjacent over hypotenuse
Tangent: Opposite over adjacent
I'll do one of the problems, you should be able to do the rest (It's good practice ;))
Step-by-step explanation:
If Z is following a standard normal distribution, then P(Z>0) would be 0.5. Standard normal distributions are symmetrical with a mean of 0, so half of the distribution will be above 0 (i.e., 0.5).