Mathematics
The fourth and seventh terms of an Arithmetic Progression (A.P.) are 60 and 114 respectively. Find the :
(a) first term and common difference.
(b) sum of its first 10 terms.
Related Questions
Assertion (A): The 9th term of a Geometric Progression (G.P.) 6, −12, 24, −48, … is a positive term.
Reason (R): The value of (−2)8 is always positive.
(A) is true and (R) is false.
(A) is false and (R) is true.
Both (A) and (R) are true and (R) is the correct explanation of (A).
Both (A) and (R) are true but (R) is not the correct explanation of (A).
In the given diagram, O is the centre of the circle and the tangent DE touches the circle at B. If ∠ADB = 32°. Find the values of x and y.
