What is the value of m?

hsedward

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2 years ago Edited: 2 years ago, bio_man

If cosA= 0 and sun B = √2/2, where A,B [0, pi/2] , the value of cscB -cot A can be written as √m in simplified form. What is the value of m?

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bio_man

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Educator

2 years ago

Hi hsedward

You sure you wrote the question correctly?

cosθ = 0

gives a θ value of pi/2

therefore, for cosA= 0, A = pi/2 (which is in the correct range of 0 to pi/2)

The problem, however, is when we put pi/2 in for cotangent, we get an error. Try it yourself, 1/tan(pi/2) gives an error.

I might be doing it wrong, but I'll decide that once you provide more insight

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hsedward Author

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2 years ago

oh no yes i forgot to put the e sign like this € there’s supposed to be € after A,B so it should look like the where A,B € [0,pi/2]

Quote from: bio_man (2 years ago)

Hi hsedward You sure you wrote the question correctly? cosθ = 0 gives a θ value of pi/2 therefore, for cosA= 0, A = pi/2 (which is in the correct range of 0 to pi/2) The problem, however, is when we put pi/2 in for cotangent, we get an error. Try it yourself, 1/tan(pi/2) gives an error.

I might be doing it wrong, but I'll decide that once you provide more insight

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bio_man

wrote...

Educator

2 years ago

Hi hsedward

Still not sure, if angle A is pi/2, tan at pi/2 doesn't exist Frowning Face

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