CBSE Class 11-science Answered
Minimum value of a trig. function
Asked by | 05 Jul, 2009, 09:34: AM
Expert Answer
f(θ)= | sin θ + cos θ + tan θ + cot θ + sec θ + cosec θ |
f(θ)= | sin θ + cos θ + tan θ + 1/tan θ + 1/cos θ + 1/sin θ |. f(θ)= | 1 + sin2 θ + 1 + cos2 θ + 1 + tan2 θ | f(θ)= | 4+ tan2 θ | tan2 θ can't be negative and least value it can take is zero. Hence the minimum value of given function is 4. Regards, Team, TopperLearning.
Answered by | 04 Sep, 2009, 09:31: AM
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