Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

Let a be a complex number such that |a| = 1. If the az^2 + z + 1 = 0 has a pure imaginary root, then tan(arg a) = ? a)(sqrt(5) - 1)/2 b)(sqrt(5) + 1)/2 c)sqrt((sqrt(5) - 1)/2) d)sqrt((sqrt(5) + 1)/2)

Let a be a complex number such that |a| = 1. If the az^2 + z + 1 = 0 has a pure imaginary root, then tan(arg a) = ?

a)(sqrt(5) - 1)/2

b)(sqrt(5) + 1)/2

c)sqrt((sqrt(5) - 1)/2)

d)sqrt((sqrt(5) + 1)/2)

Grade:10

2 Answers

mohit yadav
54 Points
8 years ago
ans is a
Bevkoof Singh
43 Points
8 years ago

i think it should be op. (d)

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free