In triangle ABC right angled at C (i) Is sin A = cos B ? (ii) Is tan A = cot B ?
[ hint : Angle C = 90⁰ ]
solve it
[ hint : Angle C = 90⁰ ]
solve it
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Answer:
Since ABC is a right angled triangle right angled at C
Hence
A+B=180
0
−C=90
0
Hence
cos(A+B)
=cos(90
0
)
=0