1-2[cos60° - cos80°) 2sin10° .

Find the value of x in each of the following: tanx=sin45°cos45°+sin30° (ii) sqrt(3)tan2x=cos60°+sin45°cos45° (iii) cos2x=cos60°cos30°+sin60°sin30°

The value of ("tan"^2 30^@ + 1/2 "sin"^2 90^@ + 1/8 "cot"^2 60^@ + "sin"^2 30^@ "cos"^2 45^@)/("sin" 60^@ "cos"30^@ - "cos"60^@ "sin"30^@)

The value of (4 tan^(2) 30^circ + 1/4 sin^(2)90^circ + 1/8 cot^(2)60^circ + sin^(2)30^circ cos^(2)45^circ)/ (sin 60^circ cos30^circ - cos60^circ sin30^circ) is : (4 tan^(2) 30^circ + 1/4 sin^(2)90^circ + 1/8 cot^(2)60^circ + sin^(2)30^circ cos^(2)45^circ)/ (sin 60^circ cos30^circ - cos60^circ sin30^circ) का मान है:

If cos 2x = cos 60^(@) cos 30^(@) + sin 60^(@) sin 30^(@), then the value of x is

Show that |(sin10^@ , - cos10^@),(sin80^@, cos80^@)| = 1

Value of the expression : (1+2sin60^(@)cos60^(@))/(sin60^(@)+cos60^(@))+(1-2sin60^(@)cos60^(@))/(sin60^(@)-cos60^(@)) is

Write the value of |(sin 10^@ - cos10^@),(sin 80^@ cos80^@)|

Prove that : (cos80^(@))/(sin10^(@))+cos59^(@)cosec31^(@)=2

Prove that: (cos80^@)/(sin10^@)+cos59^@\ cosec\ 31^@=2

Prove that: ((1+2sin 60cos 60)/(sin 60+cos 60))+((1-2sin 60cos 60)/(sin 60-cos 60))=√3