Question

if sin54° =root 5+1/4, तो sin12°*sin48°*sin 54° का value​

Answer 1

Answer:

24. Distance between Two Points: The distance between two points P and Q is the length of the line segment joining them and it is denoted by PQ.

of them.

9. Concurrent Lines: Three or more lines are said to be concurrent, if there is a point which lies on all of them.

10. Intersecting Lines: Two lines which meet at one point are said to be intersecting lines. The common point is called the ‘point of intersection’.

Note: Two distinct lines cannot have more than one point in common.

11. Parallel Lines: Two lines l and m in a plane are said to be parallel lines, if l ∩ m = ϕ. If l and m are two parallel lines in a plane, we can write l ‖ m.

12. Parallel Axiom: If l is a line and P is a point not on line l, there is one and only one line m which passes through P and is parallel to l.

13. Two lines which are both parallel to the same line, are parallel to each other.

14. If l, m, n are three lines in the same plane such that l intersects m and n ‖ m, then l intersects n also.

15. If land m are intersecting lines, l ‖ p and q ‖ m, then p and q also intersect.

16. If lines AB, AC, AD and AE are parallel to a line l, then points A, B, C, D and E are collinear.

17. Line Segment: In given two points A and B on a line l, the connected part (segment) of the line with end points at A and B, is called the line segment AB.

18. Interior Point of a Line Segment: A point P is called an interior point of a line segment AB, if P ε AB but P is neither A nor B.

19. Congruence of Line Segments: Two line segments AB and CD are congruent, if the trace-copy of one can be superposed on the