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Prashant Purohit

· started a discussion

· 1 Months ago

Y AM GM (Question: 216001.0 )

Why directly AM and GM concept

Question:

What is the least value of 25cos²\(\alpha\) + 9sec²\(\alpha\)?

Options:
A) 0
B) 15
C) 30
D) 34
Solution:

Ans: (c) 



For Video Solution Click on the link given below:

Akhilesh Chand

· commented

· 1 Months ago

so that cos and sec cancels each other in geometric mean equation

VIKAS SONI

· commented

· 1 Months ago

jo mil gaya bhai le le ...😜😜
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