Question

If in ΔABC, ∠C = 90°, then sin (A + B) =

Answer 1

Answer:

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Step-by-step explanation:

SIN(A+B) =90

SIN90=1

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Answer 2

Answer:

(A+B)=90°

Step-by-step explanation:

Triangle ABC=180°

If corner C=90°

Then (A+B)= (180°-90°)

=90π