engineering recuitment HAL Management & Design Trainee Mock Test 2023 Signals and Systems Fourier Series Properties of Fourier Series
आवधिक सिग्नल \(\rm x\left( t \right)\) का फूरियर श्रृंखला गुणांक \(\rm {a_k}\) है, तो \(\rm x\left( {t - {t_o}} \right) + x\left( {t + {t_o}} \right)\) का फूरियर श्रृंखला गुणांक क्या है?
1
\(\rm 2{a_k}\cos\left( {k{\omega _o}{t_o}} \right)\)
2
\(\rm - 2{a_k}\cos \left( {k{\omega _o}{t_o}} \right)\)
3
\(\rm 2{a_k}\cos\left( {{\omega _o}{t_o}} \right)\)
4
\(\rm - 2{a_k}\cos \left( {{\omega _o}{t_o}} \right)\)