Option B: [tex]\frac{MN}{MO}[/tex] is the value of cos(M)
Explanation:
The right angled triangle is MNO where N is the right angle.
The image of the triangle showing these values is attached below:
Let us use the formula of [tex]\cos \theta=\frac{a d j}{h y p}[/tex] to determine the value of cos M.
Hence,
[tex]\cos M=\frac{\text {adjacent side of angle } M}{\text {hypotenuse}}[/tex]
where adjacent side = MN and hypotenuse = MO
Substituting the values in the formula, we have,
[tex]\cos M=\frac{M N}{M O}[/tex]
Thus, the value of cos M is [tex]\frac{MN}{MO}[/tex]
Hence, Option B is the correct answer.