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If sin theta + cos theta = a, and sin th...

If `sin theta + cos theta = a,` and `sin theta = cos theta = b`, then A)`a^2 + b^2 = 1 ` B)`a^2 - b^2 = 1` C)`a^2 + b^2 = 2` D)`a^2 - b^2 = 2`

A

`a^2 + b^2 = 1 `

B

`a^2 - b^2 = 1`

C

`a^2 + b^2 = 2`

D

`a^2 - b^2 = 2`

Text Solution

Verified by Experts

The correct Answer is:
C
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