If $ f(z)=(x^{2}+axy+by^{2})+i(cx^{2}+dxy+y^{2})$ is an analytic function of z. then the values of a, b, c and d are :
1). a = 2, b = -1, c = -1, d = 4
2). a = -2, b = 1, c = -1, d = 2
3). a = 2, b = 1, c = -1, d = -2
4). a = 2, b = -1, c = -1, d = 2
Tlie 3rd Annual Meeting of Asian Infrastructure Investment Bank (AHB) concluded in _________.
1). Mumbai
2). Bangalore
3). Gurgaon
4). New Delhi
Kumar walks 6 km to the east and then turns to the south to walk 2 km. He again turns to the east and walks 2 km. Next,
he turns northwards and walks 8 km. How far is he now from his starting point?
1). 10.5 km
2). 12 km
3). 8 km
4). 10 km
A queue is a _______ data structure in which elements can be inserted only at one end called _______ and deleted only at
the other end called ______.
1). Non-linear, Front, Rear
2). Linear, Rear, Front
3). Non-linear, Rear, Front
4). Linear, Front, Rear
The polar form ot the complex number $\left(\frac{2+i}{3-i}\right)^{2}$ is :
1). $\frac{1}{2}\left(cos \frac{\pi}{4}-i sin\frac{\pi}{4}\right)$
2). $\frac{1}{2}\left(cos \frac{\pi}{2}-i sin\frac{\pi}{2}\right)$
3). $\frac{1}{2}\left(cos \frac{\pi}{4}+i sin\frac{\pi}{4}\right)$
4). $\frac{1}{2}\left(cos \frac{\pi}{2}+i sin\frac{\pi}{2}\right)$