Evaluate each of the following:`sin30^@xxcos45^@xxtan360^@`

Evaluate each of the following: sin30^@+cos45^@+tan180^@

Evaluate each of the following sin30^@+sec30^@xxtan60^@

Evaluate each of the following: cosec45^@+cot45^@+tan0^@

Evaluate each of the following cos0^@xxtan60^@+cot30^@

Evaluate each of the following cos30^@xxcot30^@-sec60^@

Find the values of the following: sin120^@

Evaluate each of the following 2cos30^@-sin270^@+(1)/(3)cos180^@

Select and write the correct answer from the given alternatives in each of the following:If sin(x-60^@)=2cos(x-30^@) ,then tanx=