Trigonometric EquationHard
Question
If in a triangle PQR, sin P, sin Q, sin R are in AP, then
Options
A.the altitudes are in AP
B.the altitudes are in HP
C.the medians are in GP
D.the medians are in AP
Solution
By thr low of sine rule
(say) Alos,
ap1 = ᐃ ⇒ 
= p1 ⇒ P1 =
Similarly, P2 =
and P3 
Since, sin P, sin Q, sin R are in AP,we get that P1, P2, P3 are HP.
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