JEE Main Mathematics numerical 196: If the roots of z²−28z+196=0 are r and s, enter r+s.
Correct Answer: 28
Explanation:
Vieta gives r+s=28.
MCQ Collection
India MCQs
Practice India questions with answers and explanations.
JEE Main Mathematics numerical 197: Enter the positive value of |15²−19|.
Correct Answer: 206
Explanation:
206
JEE Main Mathematics numerical 198: Enter the area of a triangle with base 16 and height 7.
Correct Answer: 56
Explanation:
Area=½×16×7=56.0.
JEE Main Mathematics numerical 199: A sequence starts at 29 and each term is three times the preceding term. Enter the second term.
Correct Answer: 87
Explanation:
87
JEE Main Mathematics numerical 184: A sequence starts at 7 and each term is three times the preceding term. Enter the second term.
Correct Answer: 21
Explanation:
21
JEE Main Mathematics numerical 185: Evaluate 3(10+1).
Correct Answer: 33
Explanation:
3×11=33.
JEE Main Mathematics numerical 186: If the roots of z²−19z+60=0 are r and s, enter r+s.
Correct Answer: 19
Explanation:
Vieta gives r+s=19.
JEE Main Mathematics numerical 187: Enter the positive value of |5²−3|.
Correct Answer: 22
Explanation:
22
JEE Main Mathematics numerical 188: Enter the area of a triangle with base 6 and height 8.
Correct Answer: 24
Explanation:
Area=½×6×8=24.0.
JEE Main Mathematics numerical 189: A sequence starts at 20 and each term is three times the preceding term. Enter the second term.
Correct Answer: 60
Explanation:
60
JEE Main Mathematics numerical 190: Evaluate 8(18+1).
Correct Answer: 152
Explanation:
8×19=152.
JEE Main Mathematics numerical 191: If the roots of z²−15z+54=0 are r and s, enter r+s.
Correct Answer: 15
Explanation:
Vieta gives r+s=15.