Q13 of 104 Page 188

In ΔABC, mC = 90 and mA = mB,

(1) Is cosA = cosB?


(2) Is tanA = tanB?


(3) Will the other trigonometric ratios of A and B be equal?

(1) yes, because the side AB and BC will be equal by property of triangle and therefore all the trigonometric ratios of these two angles will always be equal.

(2) yes, because the side AB and BC will be equal by property of triangle and therefore all the trigonometric ratios of these two angles will always be equal.


(3) yes, because the side AB and BC will be equal by property of triangle and therefore all the trigonometric ratios of these two angles will always be equal.


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