Question

O is the centre of circle in the picture beside, if angleAPB=80°, Let us find the sum of the measures of angleAOB and angleCOD and answer with reason.​

Answer 1

Correct option is

C

[0,12]

We have, ∣

α

∣=4 and −3≤λ≤2

∴∣λ

a

∣=∣−3∣4=12, at λ=−3

∣λ

a

∣=∣0∣4=0, at λ=0

And ∣λ

α

∣∣2∣4=8, at λ=2

So, the range of ∣λ

α

∣ is [0,12].

Alternate Method

Since, −3≤λ≤2

0≤∣∣λ∣≤3

⇒0≤4∣λ∣≤12

∣λ

a

∣∈[0,12]

Answer 2

Answer:

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Step-by-step explanation:

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