Write the value of `|2 7 65 3 8 75 5 9 86|`

Write the value of |[2,7,653,8,755,9,86

Write the value of the determinant |2 3 4 5 6 8 6x9x 12 x|

Find the value of 2.5^2 + 2 ( 2.5 ) ( 7.5 ) + 7.5^2

Find the value of: 25. 65\ +\ 9. 005\ +\ 3. 7

Find the value of 2.1 + 2.25 div [ 63 - {7.5 xx 8 + (13- 2. 5 xx 5) }].

If 3 ( 5x - 7) - 4 ( 8x - 13) = 2 ( 9x - 11) - 17, then the value of ( 7x - 5)/(11 x - 9) is

Find the value of: 108. 032-86. 8 (ii) 91. 001-72. 9 32. 7-25. 86 (iv) 100-26. 32

In each of the following questions , three statements of numbers following same rules are given . Find the rule and accordingly find the value of the number ? If 7*3 =52, 9*5 = 86, 3*4 = 13 , then 5*7 = ?

Observe the following pattern 1+3=2^(2)1+3+5=3^(2)1+3+5+7=4^(2) and write the value of 1+3+5+7+9+ upto n terms.