Find the ratios of the corresponding sides 10/2 and 6/3
1 answer:
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Answer:
Option C
Step-by-step explanation:
Given that u-ai + bj and v-ci + dj are vectors
We have dot product
hence inner product of u and v. So option a is true
The dot product of u and v is a scalar is true because dot product is always a scalar
The dot product of u and v is a vector. is false because dot product is only a scalar and has no direction and hence cannot be a vector
The dot product of u and v is given by the expression ac+bd
True because we multiply corresponding i components and j components and add.
So only C is not true.
Answer:
x = 17, y = 34
Step-by-step explanation:
Since the triangle is right use trig ratios to find x and y
note exact values sin30° = , tan30° =
sin30° = =
multiply both sides by y
y sin30° = 17 ( divide both sides by sin30° )
y = = 34
tan30° = =
multiply both sides by x
x tan30° = 17 ( divide both sides by tan30° )
x = = 17