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junior college 1 | H2 Maths
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a)
Date Posted: 4 years ago
Views: 234
a = (2p -6p 3p)
a is a unit vector means |a| = 1
So,
√(x² + y² + z²) = 1
√((2p)² + (-6p)² + (3p)²) = 1
√(4p² + 36p² + 9p²) = 1
√(49p²) = 1
49p² = 1
p² = 1/49
p = 1/7 (since p is positive)
a is a unit vector means |a| = 1
So,
√(x² + y² + z²) = 1
√((2p)² + (-6p)² + (3p)²) = 1
√(4p² + 36p² + 9p²) = 1
√(49p²) = 1
49p² = 1
p² = 1/49
p = 1/7 (since p is positive)
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Answer is as shown above.
Date Posted:
4 years ago
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