If `xtan45^@cos60^@=sin60^@cot60^@` , then `x` is equal to

Evaluate (2tan45^@ xx cos 60^@)/sin30^@

find the value of sin60^@cos3 0^@+sin3 0^@cos6 0^@

Prove that : sin60^(@)=2sin30^(@)cos30^(@) .

Prove that : sin60^(@)=2sin30^(@)cos30^(@) .

Evaluate the following (i) sin 60^@ cos30^@ + sin 30^@ cos 60^@ (ii) 2tan^2 45^@ + cos^2 30^@ - sin^2 60^@ (iii) (cos45^@)/(sec30^@ + c o s e c 30^@) (iv) (sin30^@ + tan45^@ - c o s e c 60^@ )/(sec30^@ + cos60^@ +cot45^@) (v) (5cos^2 60^@ + 4sec^2 30^@ - tan^2 45^@ )/ (sin^2 30^@ + cos^2 30^@ )

The valiue of sin60^(@) cos 30^(@) + sin 30^(@)cos 60^(@) is ______.

If cos^(2)30^(@)+cos^(2)45^(@)+cos^(2)60^(@)=x , then find the value of 'x'

If xsin45^0cos^2 60^0=(tan^2 60^0cos e c\ 30^0)/(s e c 45^0cot^2 30^0),\ t h e n\ x= 2 b. 4 c. 8 d. 16

If cot 3x= sin 45^(@) cos 45 ^(@) + cos 60 ^(@) , find the value of x between 0^(@) and 90 ^(@)

The value of cotx+cot(60^@+x)+cot(120^@+x) is equal to