The value of (sin 45 + cos 45 ) is

The value of (sin 45 + cos 45 ) is

(a) 1/√2

(b) √2

(c) √3/2

(d) 1

Answer :

sin 45° + cos 45° = 1/√2 + 1/√2

⇒ sin 45° + cos 45° = 2/√2 = √2

Thus, sin 45° + cos 45° = √2.

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