Math, asked by ssharipriyav, 1 month ago

If x= cos theta +sin theta and y=cos theta-sin theta, then

a) x^2 + y^2 = 2
b) x^2 + y^2 = 1
c) xy = 1
d) x/y = 1

Answers

Answered by neelavra999das

0

Answer:

a

Step-by-step explanation:

cos sq. theta +sin sq theta + 2cos theta sin theta + cos sq. theta +sin sq theta - 2cos theta sin theta= 2

Answered by sowmyapotti666

0

Answer:

this is the answer ok please mark me as brainlist

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