Question

In right angled ∆TSU, TS = 5, ∠S = 90°, SU = 12, then find sin T, cos T, tan T. Similarly find sin U, cos U, tan U.

Answer 1

i. TS = 5, SU = 12 …[Given] 

In ∆TSU, ∠S = 90° … [Given]

∴ TU² = TS² + SU² …[Pythagoras theorem] 

= 5² + 12² = 25 + 144 = 169 

∴ TU = √169 .. .[Taking square root of both sides] 

= 13