= 0
Answers
Answered by
0
Given :
To find : सारणिकों के मान सिद्ध करें
Solution:
R ↔ C
हमें पता है की यदि
Det A = | A | = a₁₁ ( a₂₂ * a₃₃ - a₃₂ * a₂₃) - a₁₂ (a₂₁ * a₃₃ - a₃₁ * a₂₃) + a₁₃ (a₂₁ * a₃₂ - a₃₁ * a₂₂)
= 1 * (Cos (3π/10)Cos(2π/10) - Sin(2π/10)Sin(3π/10) ) - 0 + 0
= Cos (3π/10)Cos(2π/10) - Sin(3π/10)Sin(3π/10)
हमें पता है Cos(x + y) = CosxCosy - SinxSiny
= Cos(3π/10 + 2π/10)
= Cos(5π/10)
= Cos(π2)
= 0
= RHS
QED
इति सिद्धम
और सीखें
"निम्नलिखित सारणिकों के मान ज्ञात कीजिए
(i) -3 & -1 & 2 \\ 0 & 0 & -1 \\ 3 & -5 & 0
brainly.in/question/16385736
मान ज्ञात कीजिए
brainly.in/question/16385407
"मान ज्ञात कीजिए ।
brainly.in/question/16385413
brainly.in/question/16385415
Similar questions