Find the values of sin 37°, sin 53°, tan 37°, and tan 53° in terms of fractions.

Solution

Given

We are required to find the values of:

Step 1: Consider a Right-Angled Triangle

Let us consider a right-angled triangle △ABC right-angled at B.

Step 2: Assume Sides of the Triangle

Take the sides of the triangle in the ratio:

AB : BC : AC = 3 : 4 : 5

Step 3: Find Required Trigonometric Ratios

For angle 37°:

sin 37° = Opposite / Hypotenuse = AB / AC = 3 / 5

tan 37° = Opposite / Adjacent = AB / BC = 3 / 4

For angle 53°:

sin 53° = Opposite / Hypotenuse = BC / AC = 4 / 5

tan 53° = Opposite / Adjacent = BC / AB = 4 / 3

Final Answer

sin 37° = 3/5

sin 53° = 4/5

tan 37° = 3/4

tan 53° = 4/3