Answer:
I think its a (it might be wrong tho )
Step-by-step explanation:
pls double check
Answer:
Step-by-step explanation:
We're going to leave the right side alone and work on the left side. In other words we are going to use a series of substitutions for these trig idenitites and get the left side manipulated to look like the right side.
Begin with the fact that sin(2x) = 2sin(x)cos(x) and make that first substitution:
2sin(x)cos(x) - tan(x) = right side
Now use the fact that the tangent is the same as the sin over the cos:
= right side
Now find a common denominator of cos(x) by multiplying the 2sin(x)cos(x) by cos(x) and writing the whole mess over that common denominator:
= right side
Now factor out a sin(x):
= right side
If we "split" that up and simplify at the same time, we'll see that sin(x) ovr cos(x) is the same as the tan(x), and that 2cos^2 - 1 is the same as cos(2x):
and that the left side now is the same as the right side. You MUST learn to recongize these identities. I'll attach a copy that I made and give to my pre-calculus and calculus classes every year, if I am able to.
A quadrant is an instrument that is used to measure angles up to 90 degrees
Answer:
If you are standing 85 ft from the base of a flagpole, and determine that at ground level, you would need to look up at a 30° angle to see the top of the flagpole, how tall is the flagpole? Round the height to tenths.
Step-by-step explanation:
Answer:
9 is the answer, wanna know how?
Step by Step explanation : So you do this and that equals 9.