Question

value of tan 7 1/2 degree​

Answer 1

explanation:

7½° lies in the first quadrant.

Therefore, both sin 7½° and cos 7½° is positive.

For all values of the angle A we know that, sin (α - β) = sin α cos β - cos α sin β.

Therefore, sin 15° = sin (45° - 30°)

                        = 1√2∙√32 - 1√2∙12

                        = √32√2 - 12√2

                        = √3−12√2

hope this may help u..........

Answer 2

upper answer is the correct answer