5cos^x+9sec^x find the minimum value (Question:241478.0)

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Diwya prakash

· started a discussion

· 1 Months ago

5cos^x+9sec^x find the minimum value (Question:241478.0)

a+b=min value when b>a so here 5+9=4 is correct answer

Question:

Find the minimum value of $5 {c o s}^{2} θ + 9 {s e c}^{2} θ$

Options:

-14

$6 \sqrt{5}$

Solution:

min value 2√ab so it will be C

Diwya prakash

· commented

· 1 Months ago

sorry 14

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