Примери за използване на Sine squared на Английски и техните преводи на Български
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Minus sine squared of a.
That's what I just substituted for the sine squared of a.
But the sine squared of a is this right there.
So we get 3 times sine squared of x.
Sine squared of x is equal to 1 plus cosine of x.
So I have 1 minus 2 sine squared of a.
You get 2 sine squared of a is equal to 1 minus cosine of 2a.
And what trig identities involve a sine squared x?
So what does sine squared x equal?
So sine squared plus cosine squared of the same angle is 1.
Now what if we wanted something in terms of the sine squared of a?
I have a minus sine squared of a minus another sine squared of a.
So that equals b sine-- b squared sine squared of theta.
Well, this thing, sine squared plus cosine squared of any angle is 1.
So we could rewrite this identity as being equal to the cosine squared of a minus the sine squared of a.
The sine squared of a plus the cosine squared of a is equal to 1.
Cosine of 2a is equal to the cosine squared of a minus the sine squared of a.
Sine squared of theta just means sine of theta squared, right?
This is equal to cosine squared a minus sine squared a.
Sine squared of x plus cosine squared of x, or of theta, is just 1, right?
And then-- What is the sine squared of 15 plus the cosine squared of 15?
And we also learned in previous videos that the sine squared theta plus the cosine squared of theta is equal to 1.
We learned that sine squared theta plus cosine squared theta is equal to 1.
When we did this problem,we said that sine squared of t plus cosine squared of t is equal to 1.
We have 25 times sine squared of 15 plus cosine squared of 15.
And that is that the cosine squared of t plus the sine squared of t is equal to 1.
This is equal to 25 sine squared 15 degrees, or sine of 15 degrees squared. .
You could write that the sine squared of a is equal to 1 minus the cosine sign squared of a.
We just showed that sine squared of x is the same thing as 1 minus cosine squared of x.
Well, if we take this term and this term, we get-- those two terms are b squared sine squared of theta plus b squared cosine-- this should be squared there, right, because we squared it. b squared cosine squared of theta, and then we have plus c squared minus 2bc cosine theta.