Question

ABC is a right angled triangle at C prove that (1) tanAtanB=1 (2) sinAcosB+cosAsinB=1

Answer 1

HELLO DEAR,


GIVEN that:-

.

We know that:-




Or




NOW,


--------( 1 ) tanA * tanB = 1


tan(90° -
cotB * tanB = 1/tanB * tanB = 1


---------( 2 )

sinAcosB + cosAsinB = 1

Sin(A + B)

sin(90) = 1



I HOPE ITS HELP YOU DEAR,
THANKS

Answer 2

what is the L. C. M. of 23805