Question

Which equation is correct?

Answer 1

I think the answer to your question is D.

Answer 2

The correct equation is:

d. cot x°=adjacent÷Opposite

Explanation:

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

`\cot x=(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=(adjacent)/(opposite)`

Hence, option: a is incorrect.

Option: d is correct.

• Also, the secant trignometric ratio is given by:

`\sec x=(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