If `costheta-sintheta=sqrt(2)sintheta` then Prove that `costheta+sintheta=sqrt(2)costheta`

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Not good explanation only they are solving questions answer is correct but explanation very bad 👎👎👎👎 1:09

Hell_Riding
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Tnqq sir ji

Asi Cpo me aaya tha ye q.

sakshiverma_cop
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Wa kuch bhi (sin + cos) ² pehele hi use kar lya thaa last mai rooot kaise daal dyaa

Flex-yt