1
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+2
-0
In $\triangle ABC$, if $\angle C = \dfrac{\pi}{3}$, then the value of $\cos^2 A + \cos^2 B + \cos A\cos B$ is...
A
$\dfrac{3}{4}$
B
$\dfrac{5}{4}$
C
$\dfrac{-3}{4}$
D
$\dfrac{-5}{4}$
2
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+2
-0
In triangle ABC, with usual notations, if $(a+b+c)(a+b-c) = ab$, then the measure of angle C is...
A
$\dfrac{\pi}{2}$
B
$\dfrac{2\pi}{3}$
C
$\dfrac{5\pi}{6}$
D
$\dfrac{3\pi}{4}$
3
MHT CET 2026 18th April Morning Shift
MCQ (Single Correct Answer)
+2
-0
In $\triangle ABC$, with usual notation, if $a = 13, b = 14, c = 15$, then the sum of the values of $\sin\left(\dfrac{A}{2}\right)$ and $\sin A$ is....
A
$\dfrac{14}{5\sqrt{5}}$
B
$\dfrac{\sqrt{5}+4}{5}$
C
$\dfrac{5+\sqrt{5}}{5}$
D
$\dfrac{2}{\sqrt{5}}+\dfrac{1}{2}$
4
MHT CET 2026 17th April Evening Shift
MCQ (Single Correct Answer)
+2
-0
In $\triangle ABC$, with usual notation, if cot A, cot B, cot C are in arithmetic progression, then
A
sin A, sin B, sin C are in arithmetic progression.
B
$a^2, b^2, c^2$ are in arithmetic progression.
C
cos A, cos B, cos C are in arithmetic progression.
D
a, b, c are in arithmetic progression.

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