Answer:
√50
Step-by-step explanation:
tan X = opp/adj
tan X = 5/5
tan X = 1
X = tan-¹ 1
X = 45
but cos X = hyp/adj
X = 45
Cos 45 = C/5
1/√2 = C/5
5 = C√2
C = 5/√2
rationalize 5/√2 × √2/√2
5√2/2
so therefore, the answer is √50 bcos
√25×2
5√2
the answer is √50
