Question
If tan A = 1, then what will be the value of sec² A +
cosec² A?Solution
tan A = 1
⇒ tan A = tan 45°
⇒ A = 45°
⇒ sec² A + cosec² A = (√2)² + (√2)² = 2 + 2 = 4
Select the number from among the given options that can replace the question mark (?) in the following series.
612 615 621 630 642 ?
CALANDER is coded in a code as CLANAEDR. Find the code for CIRCULAR under the same rule.
Select the Venn diagram that best illustrates the relationship between the following classes.
Fathers, Brothers and Males
Which of the following numbers will replace the question mark(?) in the given series?
7, 7, 5, 15, 11, 55, 49, 343,?
Which of the following options can replace the question mark (?) and complete the given number series?
8, 6, 32, 18, 128, ?
A, B, C and D are sitting around a circular table facing the centre. Who sits to the immediate right of A?
Statements:
(I) C sits to the...
Select the correct combination of mathematical signs that can sequentially replace the * signs and balance the given equation.
36 * 12 * 6 * 12 * 3 = 63
Which number will replace the question mark (?) in the following number series?
 5, 4, 6, 15, 56, ?
Six students Lucas, Loren, Simon, Dolph, Vini and Fray are sitting around a circular table facing the centre. Lucas is sitting second to the left of Fra...
Kamya and Vedika start walking from two different points. Kamya walks 14m from Point-A towards the east, then turns right and walks 7m. Then she turns l...
Relevant for Exams:
