Question

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Answer 1

`\cos 60= (1)/(2)`

`\tan 60 = √(3)`

Explanation:

See the diagram given with the question first.

Here we are given a right triangle with two angles other than the right angle are 60° and 30°.

The length of the side opposite to 30° is 4 and the side opposite to 60° is 4√3 and automatically the length of the hypotenuse is 8.

Now,
`\cos 60= (Base)/(Hypotenuse) = (4)/(8) = (1)/(2)`

Again.
`\tan 60 = (Perpendicular)/(Base) =(4√(3) )/(4) =√(3)`

(Answer)