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Category: Integration

N-3-2cos-x-2-3cos-x-dx-

Question Number 129746 by bramlexs22 last updated on 18/Jan/21 N=3+2cosx2+3cosxdx Answered by liberty last updated on 18/Jan/21 N=23(2+3cosx)+832+3cosxdxN=23x+83dx2+3(2cos2x21)$$\:\mathrm{N}=\:\frac{\mathrm{2}}{\mathrm{3}}\mathrm{x}+\frac{\mathrm{8}}{\mathrm{3}}\int\:\frac{\mathrm{dx}}{\mathrm{6cos}\:^{\mathrm{2}}…

Question-64176

Question Number 64176 by aliesam last updated on 15/Jul/19 Answered by MJS last updated on 15/Jul/19 theminimumoff(x)=1+x2isf(0)=1theareabetweenthexaxisandf(x)in[1;1]$$\mathrm{is}\:\mathrm{greater}\:\mathrm{than}\:\mathrm{2}\:\Rightarrow\:\mathrm{2}<\underset{−\mathrm{1}} {\int}^{\mathrm{1}} \sqrt{\mathrm{1}+{x}^{\mathrm{2}} }{dx}…