Trigonometric EquationHard
Question
The sides of a triangle are sinα, cosα and 
for some 0 < α < 
. Then the greatest angle of the triangle is
for some 0 < α < . Then the greatest angle of the triangle isOptions
A.60o
B.90o
C.120o
D.150o
Solution
Greatest side is 
, by applying cos rule we get greatest angle = 120o.
, by applying cos rule we get greatest angle = 120o. Create a free account to view solution
View Solution FreeMore Trigonometric Equation Questions
Let n be a positive integer such that sin + cos = . Then :...Let A and B be two events such that = , P(A ∩ B) = and P() = , where stands for the complement of the event A. The...The number of intrgral values of k for which the equation 7cos x +5sin x = 2k +1 has asolution, is...The sum of two forces is 18 N and resultant whose direction is at right angles to the smaller force is 12 N. The magnitu...is equal...