tmua 2020 Q12

tmua · Uk · paper1 1 marks Curve Sketching Number of Solutions / Roots via Curve Analysis
How many real solutions are there to the equation
$$3\cos x = \sqrt{x}$$
where $x$ is in radians?
A $0$
B $1$
C $2$
D $3$
E $4$
F $5$
G infinitely many
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How many real solutions are there to the equation

$$3\cos x = \sqrt{x}$$

where $x$ is in radians?

A $0$

B $1$

C $2$

D $3$

E $4$

F $5$

G infinitely many