Question

Prove that =>Sin45°=>1/√2​

Answer 1

Answer:

the proof can be obtained by using a RIGHT ANGLED ISOSCELES TRIANGLE.

and then applying the Sine formula i.e. sin(°)={p/h}

Answer 2

Answer:

answer is like this

Step-by-step explanation:

in ABC

ANGLE ABC=90° ,BC=AC=a

by using Pythagoras theorem

AB^2=BC^2+AC^2

or, AB^2=a^2+a^2

or, AB^2=2a^2

hence, AB=√2a units

now,

sin45=AC/AB

=a/√2a

=1/√2