1
KCET 2017
MCQ (Single Correct Answer)
+1
-0
The value of $\cos ^2 45^{\circ}-\sin ^2 15^{\circ}$ is
A
$\frac{\sqrt{2}+1}{2 \sqrt{2}}$
B
$\frac{\sqrt{3}-1}{2 \sqrt{2}}$
C
$\frac{\sqrt{3}}{2}$
D
$\frac{\sqrt{3}}{4}$
KCET Subjects
EXAM MAP