Math, asked by riturajdtc, 10 months ago

please answer the above question ​

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Answered by amitansuparida202
0

Answer:

see bro since angle B is 90° then (A+C) should also be 90° because the sum of all angles of a triangle should be 180°

therefore cos(A+C) = cos90° = 1

so option b is your answer

Answered by karanjotgaidu
0

Answer:

In a triangle, sum of all angles is 180°

A + B + C = 180°

It is given that B = 90°

A + 90 + C = 180°

A + C = 180° - 90°

A + C = 90°

Cos(A + C) = cos 90° = 0

(a) 0 is the correct answer

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