C++
1.sum /* The extension name of C++ is .cpp*/ /*Sum of two numbers*/ #include<iostream> #include<conio.h> using namespace std; int main()
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MS Office Word
=rand() ↵ Ø The extension Name Of MS Office word is → .docx Home Tab Font: select your text → go to home tab → click font under font group → select your font Ø Font Size: select your text → go to home tab → click font size under font group → select your font size
Math 5
Arithmetic Progression a, a + d, a + 2d, a + 3d, a + 4d, ………. ,a + (n – 1) d d = a 2 – a 1 = a 3 – a 2 = ……. = a n – a n – 1 nth Term of an AP :- a n = a + (n − 1) × d Sum of N Terms of AP:- S n = n/2[2a + (n − 1) × d] Sum of AP when the Last Term is Given :- S = n/2 (first term + last term) Geometric Progression a, ar, ar 2 , ar 3 , ar 4 ,…, ar n-1 Nth Term of G.P:- a n = t n = ar n-1 Sum of N term of GP:- S n = a[(r n – 1)/(r – 1)] if r ≠ 1 and r > 1 S n = na if r = 1 S n = a[(r n – 1)/(r – 1)] if r ≠ 1 and r > 1 Harmonic progression
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