AREA RELATED TO CIRCLE
I want to ask question that How to find Ogive Graph?
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Ify= (x+1)^1/2– (x-1)^1/2,prove that(x2 -1)d2y+xdy-1y=0.
Ify= x+1– x-1,provethat(x2 -1)d2y+xdy-1y=0.
EXCEL ALL FORMULA
Evaluate : (cos2 20° + cos2 70°) + cot 25 tan 65 + cot 5° cot 10° cot 60° cot 80° cot 85°