Question

SHOW THAT SIN 100 DEGREE-SIN 10 DEGREE IS POSITIVE

Answer 1

As per the given expression will be write as Sin 100 - sin 10

=sin(90+10)- Sin 10

=sin90 cos10- cos90sin10-Sin 10

√2(1/√2 cos 10 -1/√2 sin10)

√2  sin⁡〖(45〗-10)

√2  sin⁡35

We  are clear that  first  quadrant  sing is positive  so  sin 35 >0

Therefore result is sin 100-sin 10=√2sin 35>0 hence it is positive.

Answer 2

Answer:

refer the attachment!!!!