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secondary 4 | A Maths
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Anonymous
Anonymous

secondary 4 chevron_right A Maths chevron_right Singapore

hi need help with this

Date Posted: 2 years ago
Views: 159

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Arnold K H Tan
Arnold K H Tan's answer
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Anonymous
Anonymous
2 years ago
hi just want to ask how do you calculate the value of tanA in degrees? bcos the range is 90
Arnold K H Tan
Arnold K H Tan
2 years ago
Question asked you to determine the value of tan A... not the value of the angle A. The domain given just tells you whether your value of tan A is negative (quadrant 2 in this case) or positive (Q1 and Q3)
Eric Nicholas K
Eric Nicholas K
2 years ago
To anonymous:

A is an angle in degrees.
tan A is actually a ratio of two lengths: the length “opposite” to angle A and the non-hypotenuse length “adjacent” to angle A.

In other words, tan A is not an angle; rather, it is kind of a length ratio measure.

For this question, we attempt to calculate our answer without having to know what angle A is.