Question

if sinq +cosq equal to root 2 find value of sinq multiple cosq​

Answer 1

Answer:

sinq + cosq = √2

Squaring both sides,

(sinq + cosq) ² =(√2)²

sin²q + cos²q + 2sinqcosq = 2

1 + 2sinqcosq = 2

2sinqcosq = 1

sinqcosq = 1/2

The answer is 1/2

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