TS EAMCET 20-July-2022 Shift 2 Solved Paper

Section: Mathematics

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Question : 23 of 160

Marks: +1, -0

If a‌tan‌α+b‌tan‌β=(a+b)‌tan(‌

α+β

2

) and α−β≠2nπ then ‌

cos‌β

cos‌α

=

‌
a
b
‌
a+b
a−b
‌
a2−b2
a2+b2
‌
b
a

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