CBSE Class 11-science Answered
Solve the following question:
Asked by nkrbasak | 15 Mar, 2012, 09:00: PM
Expert Answer
In any right angled triangle , if one of the angles squeezes to 0 then the length of the perpendicular becomes 0 and we know that sinA = P/H , Now for A = 0 , P=0 , sin0 = 0
Similarly if any angle other that the right angle is 90 then base becomes 0 , hence cos90 = B/H = 0
When one angle is 45 then the triangle become right angled iscoceles triangle , so P = B , hence tan45 = P/B = 1 .
Answered by | 16 Mar, 2012, 11:18: AM
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