Question

1-cosx=? I need the answer with a brief sum​

Answer 1

Answer:

2sin^2(x/2)

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Answer 2

Answer:

2sin^2(x/2)

Step-by-step explanation:

sin(x/2)=√{(1-cosx)/2}

sin^2(x/2)=(1-cosx)/2

2sin^2(x/2)=1-cosx