Question

sin 45° x cos 45° + tan 30° x sin 60°​

Answer 1

Answer:

R.H.S

sin45⋅cos45

o

+sin30

=

2

1

.

2

1

+

2

1

=

2

1

+

2

1

=

2

2

=1

Now,

L.H.S

tan3x=1

But tan45

o

=1

∴tan3x=tan45

⇒3x=45

⇒x=

3

45

∴x=15.

Answer 2

Answer:

1/√2 x 1√2 + 1√3 x √3/2

√2 x √2 + 2

2+2

4