Question
If tan θ + cot θ = 5, find the value of tan²θ +
cot²θ.Solution
Using the identity tan²θ + cot²θ = (tan θ + cot θ)² - 2, we get 25 - 2 = 23. Correct answer: b
12   18   31   51   ?   112
72, 82, 62, 102, 22, ?
Choose the missing term.
R, U, X, A, D,?
129, 224, 355, 528, ?, 1024
5, 12, 24, 36, 52, ?
What will come in place of the question mark (?) in the following series?
50, 70, 110, 190, 310, ?
The question below is based on the given series I. The series I satisfy a certain pattern, follow the same pattern in series II and answer the questions...
10, 94, 115, 138, 163, ?
What will come in place of the question mark (?) in the following series?
1458, ?, 162, 54, 18, 6
- What will come in place of the question mark (?) in the following series?
1, 2, 5, 16, 65, ?