Question

help me out tomorrow is my exam​

Answer 1

This is a simple one.Let's see how->

(1-1/2)(1-1/3)(1-1/4)........(1-1/10)

=(2-1)/2×(3-1)/3×(4-1)/4........(10-1)/10

=1/2×2/3×3/4.......×9/10

=1/10(because the denominator of the first will cancel out the numerator of the second and the denominator of the second will cancel out the numerator of the third and so on,leaving only 1 as numerator and 10 as denominator uncancelled)

With regards from Switaj,

Hope it helps you.