Question

Which equation is correct?

Answer 1

Answer:

I think the answer to your question is D.

Answer 2

Answer:

The correct equation is:

           d.   cot x°=adjacent÷Opposite

Step-by-step explanation:

• We know that the cotangent trignometric function is given by:

        $\cot x=\dfrac{B}{P}$

where B and P represents the Base and perpendicular of the right  triangle corresponding to angle x.

The side base is adjacent to angle x and Perpendicular side is opposite to the given angle x.

Hence, we may also write,

$\cot x=\dfrac{adjacent}{opposite}$

Hence, option: a is incorrect.

                    Option: d is correct.

• Also, the secant trignometric ratio is given by:

$\sec x=\dfrac{Hypotenuse}{Base}$

As we know that both base and hypotenuse are the sides which are adjacent to x.

Hence, sec x°=adjacent÷adjacent

Hence, options: b and c are incorrect