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Q7 Find the value of tan 60° geometrically. |
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Answer» If we consider any right angled triangle ADB, we havebase=BD=a, perpendicular=AD=√3a, hypotenuse=AB=2a and∠ABD=60° tan60°=AD/BD=√3a/a=√3. The values of the trig functions of 30° and 60° can be written like this:(15) sin 30° = ½, sin 60° = (√3)/2. cos 30° = (√3)/2, cos 60° = ½ 1/2 answer is the right answer |
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