[" 50."" aft "4^(@)=5,5^(b)=6,6^(c)=7" and "7^(d)=8" i "],[[" (a) "1," (b) "1.5," (c) "3]]

Let 3^(a)=4,4^(b)=5,5^(c)=6,6^(d)=7,7^(e)=8 and 8^(f)=9, Then the value of the product (abcdef) is

Suppose 4^(a)=5,backslash5^(b)=6,backslash6^(c)=7,backslash7^(d)=8 then the value of abcd is a.2 b.(3)/(2) c.1 d.(5)/(2)

If A={5,6,7} and B={7,8,9} then A uu B is equal to a) {5,6,7,8,9} b) {5,6,7} c) {7,8,9} d) None of these

Express the following as improper fractions : (a) (7) 3/4 (b) (5) 6/7 (c) (2) 5/6 (d) (10) 3/5 (e) (9) 3/7 (f) (8) 9/4

If (7a + 8b)/( 7c + 8d) = (7a - 8b)/(7c - 8d), prove that : (i) a:b=c:d (ii) (4a - 5b)/(4c - 5d)= (3a + 4b)/(3c + 4d)

A fraction equivalent to (45)/(105) is (a) 6/(14) (b) 4/7 (c) 5/7 (d) 7/5

If |z|-z=3-2i, then z equals (A) 7/6+i, (B) -7/6+2i, (C) -5/6+2i, (D) 5/6+i

(6)^(4)-:(36)^(3)xx216=6^((7-5))1 b.4 c.6 d.7

A = {x : 2 lt x lt 8 " and " x in N} and B = {x:3 lt x lt 9 " and " x in W} . Find (A - B) nn (B - A) . the following are the steps involved n solving the above problem. Arrange them in sequential order. (A) A = {3,4,5,6,7} and B = {4,5,6,7,8} (B) A - B = {3}, B - A = {8} (C) A - B = {3,4,5,6,7}-{4,5,6,7,8}, B-A ={4,5,6,7,8} - {3,4,5,6,7} (D) (A - B) nn (B - A) = phi