Q.

The determinant Δ=11+ii1+ii1i11+i equals

see full answer

High-Paying Jobs That Even AI Can’t Replace — Through JEE/NEET

🎯 Hear from the experts why preparing for JEE/NEET today sets you up for future-proof, high-income careers tomorrow.
An Intiative by Sri Chaitanya

a

7+4i

b

-7+4i

c

2i-1

d

(2i-1)

answer is C.

(Unlock A.I Detailed Solution for FREE)

Detailed Solution

Using C1→C1+C2+C3,we can write ∆=2(1+i)Δ1 whereΔ1=11+ii1i1111+i=11+ii0−11−i0−i1=i [using  R2→R2−R1 and R3→R3−R1Thus, Δ=2(i−1)
Watch 3-min video & get full concept clarity
Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

Related Blogs
Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
Result Producing online coaching for JEE/NEET of south India
Largest All India Test Series for JEE/NEET
Best Online Course for IIT JEE
Best Online Course for NEET
Best Online Course for CBSE
whats app icon
The determinant Δ=11+ii1+ii1i11+i equals