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zarkam21:
Help please
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zarkam21:
Vocaloid:
for a) you are given the opposite side and you want to find the hypotenuse. which trig ratio should we use?
zarkam21:
sin?
Vocaloid:
good so sin(theta) = opposite/hypotenuse
solve for hypotenuse
zarkam21:
cos solves for adjacent
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zarkam21:
okay
zarkam21:
wouldnt it be the inverse
zarkam21:
because there is no ypotenuse
Vocaloid:
what do you think the hypotenuse is equal to? can you try writing an expression for it?
zarkam21:
i thought it would be sin^-1(38)
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Vocaloid:
we are not solving for theta so there is no reason to take the inverse of a trig function
zarkam21:
oh we could do hypotenuse = sin(theta) * opposite?
Vocaloid:
just substitute the hypotenuse, opposite, and angle into sin(theta) = opposite/hypotenuse then solve for hypotenuse
Vocaloid:
check your math again
zarkam21:
32.5
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Vocaloid:
good that's a
Vocaloid:
then you could use another trig function to solve for b
zarkam21:
cos
Vocaloid:
sure
zarkam21:
25.6
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Vocaloid:
good, that's it
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