Question

Find uA. 2√2B. 2C. 4D. 2√

Answer 1

Answer: B) 2

Step-by-step explanation:

Using SOH CAH TOA

CAH

Cos ∝ = Adjacent/Hypothenus

∝ = 45°, Adjacent = √2, Hypothenus = u

⇒ Cos 45° = √2/u

But Cos 45° = 1/√2 in surd form

i.e 1/√2 = √2/u

u = √2 x √2

u = √4

u = 2•I’ve completed answering the question.