oblicz calke lok: prosze o pomoc w rozwiazaniu calki: ∫cosx/ 1+4sin² x dx function(obj, start) { for (var i = (start || 0), j = this.length; i < j; i++) { if (this[i] === obj) { return i; } } return -1; }

Mila:

	cosx
∫		dx=..
	1+4sin2x

[sinx=t, cosx dx=dt] ..

	1
=∫		dt = dalej sam
	1+4t2

lok: function(obj, start) { for (var i = (start || 0), j = this.length; i < j; i++) { if (this[i] === obj) { return i; } } return -1; }