Question

sinc +cosc=0. proof c=3π/4​

Answer 1

Answer:

Step-by-step explanation:

Give c=3(180)/4=3*45=135

Sin(135)+cos(135)

Sin(180-45)+cos(180-45)

Sin45-cos45

1/root2-1/root2

0

Answer 2

Answer:

here is the solved proof

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