Solve for x: `xsin30^@cos^2 45^@=(cot^2 30^@sec60^@tan45^@)/(cosec^2 45^@cosec30^@)`

Find the values of :c. 6cos^2 45^@-18cot^2 60^@+3sec60^@

Verify:b. 2cos^2 45^@=cos^2 60^@+cos^2 30^@

Find the values of :d. (5sin^2 30^@+cos^2 45^@+4tan^2 60^@)/(2sin30^@cos60^@+tan45^@)

Find the value of (sin^3(360^@+45^@)tan(180^@-45^@)sec^2(-45^@))/(cos^2(270^@+45^@)cosec^2(180^@+45^@)sin(-45^@))

The value of sin^2 30^@-cos^2 30^@ is:

Solve for x : 2tan^-1(cos x)=tan^-1(2cosec x)

Verify:d. (cos30^@-sin30^@)/(cos30^@+sin30^@)=sec60^@-tan60^@

Evaluate the following:(v) (5cos60^@+4Sec30^@-tan^2 45^@)/(Sin^2 30^@+Cos^2 30^@)

Find the values of :a. sin60^@ cos30^@+cos60^@sin30^@

Find the values of :b. tan^2 30^@+tan^2 45^@+tan^2 60^@