Use linearization at a=4a = 4a=4 to estimate 4.1\sqrt{4.1}4.1.A2.052.052.05B2.0252.0252.025check_circleC222D2.12.12.1Explanationf(x)=xf(x) = \sqrt xf(x)=x, f(4)=2f(4) = 2f(4)=2, f′(4)=1/4f'(4) = 1/4f′(4)=1/4. L(x)=2+(1/4)(x−4)L(x) = 2 + (1/4)(x-4)L(x)=2+(1/4)(x−4). L(4.1)=2+0.025=2.025L(4.1) = 2 + 0.025 = 2.025L(4.1)=2+0.025=2.025.