Question
If angle between two sides of 3 cm & 2 cm of a triangle
is 30°. what is the area of the triangle ?Solution
Area of the triangle = 1/2 X a X b X Sin θ where ɵ is the angle between two sided a & b of the triangle; So Area of the triangle = 1/2 X a X b X Sin θ = 1/2 X a X b X sin 300 = 1/2 X 3 X 2 X 1/2 = 3/2 cm2
If P, Q, R, S are the vertex of a cyclic quadrilateral. Find the value of
`1/sec p` + `1/sec q` + `1/sec r` +`1/sec s`
...cot 4˚ x cot 47˚ x cot 42.3˚ x cot 43˚ x cot 47.7˚ x cot 86˚= ?
If θ is an acute angle and sin θ + cosec θ = 2, then the value of sin2 θ + cosec2 θ is:
sin2 7 ° + sin2 8 ° + sin2 9 ° + sin2 10 ° + ……… + sin2 83 ° = ?
...Find the simplified value of:
(tan 40 º + tan 20 º )/(1 - tan 40 º tan 20 º)
The angles of elevation of the top of a flagpole from two points A and B on level ground are 30° and 60° respectively. The points A and B are on the s...
If tan A =
, find the va...Given that tan(A+B) = √3 and tan(A-B) =1/√3, find the values of A and B.
