নিচের প্রতিটি অনুপাতকে তার\r\nসরলতম আকারে প্রকাশ করুন:\n60:72 \r\n(ii) 324:144 (iii) \r\n...

Express each of the following ratios in its simplest form: 60:72 (ii) 324:144 (iii) 85:391 (iv) 186:403

Evaluate (n!)/((n-r)!) when : (i) n=10,r=4 (ii) r = 1 (iii) r = 2.

Evaluate (n!)/(r!(n-r)!) when : (i) n=6, r=2 (ii) n=7, r=4 (iii) n=15, r=12 .

Evaluate (n - r) !, when : (i) n=6, r=2 (ii) n=9, r=5

Evaluate (n!)/((n-r)!) , when : (i) n=6, r=2 (ii) n=9, r=5

When n = 5 and r = 2, find the values of : (i) (n!)/(r!) (ii) (n!)/(r!(n-r)!)

Evaluate (n!)/((n-r)!) , when (i) n = 6, r = 2 (ii) n = 9, r = 5

Let R be a relation in N defined by R={(a , b); a , b in N\ a n d\ a=b^2dot} Are the following true: (i)\ (a , a) in R\ AA\ a in N (ii)\ (a , b) in R=>(b , a) in R (iii)\ (a , b) in R ,(b , c) in R=>(a , c) in R

The domain of f (x) = sqrt (log ((1)/(| sin x |))) is (i) (-oo, oo) (ii) R-{(n pi)/(2): n in Z} (iii) R-{(n pi): n in Z} (iv) R-{(n pi)+(-1)^(n) ((pi)/(2)): n in Z }

If n = 12, r = 4 , then evaluate the following: (i) (n!)/(r!(n-r)!) (ii) (n!)/((n-r+2)!)