Question

in a right triangle ABC angle b=90 °,if ac=17cm and bc=8cm then 15sec a+b cot a =​

Answer 1

Step-by-step explanation:

Given: ∆ABC,B=90° , AC=17, BC=8.

To find:15sec a+b cot a =?

By applying Pythagoras theorem, we get:

AC²-BC²=AB²

17²-8²=AB²

AB²=289-64

=>AB=√225=15cm.