Question

In triangle ABC, cos A = 7/25. Which other expression has a value of 7/25A) sin BB) tan BC) cos BD) tan A ?

Answer 1

Solution:

The given trigonometric ratio in the question is

$\begin{gathered} \cos A=\frac{7}{25} \\ adjacent=7 \\ hypotenus=25 \end{gathered}$

Concept:

To solve the question, we will use the triangle below

Hence,

The trigonometric ratio we are going to use will be

$\begin{gathered} \sin B=\frac{opposite}{hypotenus} \\ opposite=7 \\ hypotenus=25 \end{gathered}$

By substituting the values, we will have

$\begin{gathered} \sin B=\frac{oppos\imaginaryI te}{hypotenus} \\ \sin B=\frac{7}{25} \end{gathered}$

Hence,

The final answer is

$\Rightarrow sinB$

OPTION A is the right answer