Question

Please find the question in the attachment.​

Answer 1

There's a mistake in question. Question will be :

If sin∅+cos∅=√2cos∅, (∅≠90°) then the value of tan∅ will be:

Solⁿ: sin∅+cos∅=√2.cos∅

Dividing by cos∅ on both sides,we get

sin∅/cos∅+cos∅/cos∅=√2cos∅/cos∅

tan∅+1 = √2

tan∅=√2-1

Therefore, option (a) is correct.