If {\A}+ {\B}+ {\C}+ {\D}=2 \pi, then \cos A-\cos B+\cos C-\cos D= [TG EAPCET 13 May 2023 Shift 1]

Correct Answer is : 4sinA+B2cosA+C2sinA+D2

-4 \sin \frac{A+B}{2} \cos \frac{A+C}{2} \sin \frac{A+D}{2}

4 \sin \frac{A+B}{2} \sin \frac{A+C}{2} \sin \frac{A+D}{2}

-4 \sin \frac{A+B}{2} \sin \frac{A+C}{2} \sin \frac{A+D}{2}

4 \sin \frac{A+B}{2} \cos \frac{A+C}{2} \sin \frac{A+D}{2}

TS EAMCET Engineering 13 May 2023 Shift 1 Solved Paper

Section: Mathematics

Question : 27 of 160

Marks: +1, -0

If A+B+C+D=2π, then cos‌A−cos‌B+cos‌C−cos‌D=

[TG EAPCET 13 May 2023 Shift 1]

Go to Question:

Prev Question

Next Question