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catie8269
14.11.2020 •
Mathematics
If cosθ=3/5, find tanθ
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Ответ:
Step-by-step explanation:
Cosine is equal to adjacent over hypotenuse.
cos(x)=adjacent/hypotenuseWe are given: cosθ=3/5
Therefore, the adjacent is 3 and the hypotenuse is 5.We want to find tanθ. Tangent is equal to opposite over adjacent.
We need to find the other leg of the triangle, which is the "opposite". Use Pythagorean Theorem.
The hypotenuse (c) is 5.
One leg (a) is 3, the other (b) is unknown.
Evaluate all the exponents.
Subtract 9 from both sides of the equation.
Take the square root of both sides.
Now we know the "opposite" is 4. We can find the tangent now.
The tangent of theta is 4/3
Ответ:
answer is c
step-by-step explanation:
81/12=324/x
x=48