1 . 2uv2+u2-v22=?

• A. $2uv$
• B. $u^2+v^2$
• C. ${\left(u^2+v^2\right)}^2$
• D. ${\left(2uv\right)}^2+{\left(u^2+v^2\right)}^2$

Answer: Option C

Explanation:

2 . 12U2 is the new grouping formed by-  

• A. India, Ukraine, Isreal, USA
• B. India, USA, UAE, Israel
• C. Iraq, China, Russia, Iran
• D. UK, USA, Israel, India

Answer: Option B

Explanation:

3 . Complete the series: 2u. 70. 31i, 127e,--------

• A. 254u
• B. 3220
• C. 4861
• D. 51la
• D. None

Answer: Option D

Explanation: