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Ramesh patel
Answers (2)
Let the charge of helmet befor tax be x so 9% of x= 1.80 9x/100 = 1.80 x =(1.80*100)/9 = 20
Prove that (cos40-sin30)/sin60-cos50 =tan50 LS = (cos40-sin30)/sin60-cos50 =(cos40-sin(90-60))/sin60-cos(90-40) =(cos40-cos60)/sin60-sin40 =2sin(40+60/2)sin(60-40/2)/2cos(60+40/2)sin(60-40/2) =2sin50 sin10 /2cos50 sin10 =sin50/cos50 =tan50
