Advertisements
Advertisements
प्रश्न
The two planes x – 2y + 4z = 10 and 18x + 17y + kz = 50 are perpendicular, if k is equal to ______.
पर्याय
– 4
4
2
– 2
MCQ
रिकाम्या जागा भरा
Advertisements
उत्तर
The two planes x – 2y + 4z = 10 and 18x + 17y + kz = 50 are perpendicular, if k is equal to 4.
Explanation:
Given, x – 2y + 4z = 10 and 18x + 17y + kz = 50 are perpendicular
∵ (1)(18) + (–2)(17) + (4)(k) = 0
18 – 34 + 4k = 0
–16 + 4k = 0
4k = 16
k = 4
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
