Electrical Engineering > GATE 2020 > Fourier Series
Which of the following is true for all possible non-zero choices of integers m,n; m≠n or all possible non-zero choices of real numbers p,q; p≠q. as applicable?
A
(1/π)∫0πsin mθ sin nθ dθ=0
B
(1/(2π))∫-π/2π/2sin pθ sin qθ dθ=0
C
(1/(2π))∫-ππsin pθ cos qθ dθ=0
D
limα→∞(1/(2α))∫-ααsin pθ sin qθ dθ=0

Correct : c

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