Which of the following notations given below is equivalent t

Which of the following notations given below is equivalent to a_10 j? v^10 a_10 j 1 + v^9 s_9 i s_10 i, a_10 i (1 + i)a_9 i + 1 v + s_9 i

Solution

which of the foliowing given below is equivalent to a_iii

) Order numbers on a stock control system can range between 10000 and 99999 inclusive. Which of the following inputs might be a result of designing tests for only valid equivalence classes and valid boundaries:
a) 1000, 5000, 99999
b) 9999, 50000, 100000
c) 10000, 50000, 99999
d) 10000, 99999
e) 9999, 10000, 50000, 99999, 10000

2) Which of the following is NOT a black box technique:
a) Equivalence partitioning
b) State transition testing
c) Syntax testing
d) Boundary value analysis

3) Error guessing is best used
a) As the first approach to deriving test cases
b) After more formal techniques have been applied
c) By inexperienced testers
d) After the system has gone live
e) Only by end users

4) Which is not true-The black box tester
a. should be able to understand a functional specification or requirements document
b. should be able to understand the source code.
c. is highly motivated to find faults
d. is creative to find the system’s weaknesses.