sec^2A+cos^2A is
options;
a.never less than 2
b.always 3
c.always 1
d.none of these
Answers
Answered by
0
the answer is always 1
AlokPrabhakar:
how????????
Take A as 60 and see
consider A as theta and use the identity sin square theta plus cos square theta is 1
but its sec square theta in my question
never less than 2
is there any way to prove it or you know it by trial and error
take secA as 1/CosA cosA must be less than or equal to 1
why??????
Answered by
0
a . never less than 2
is this answer right
plzz mark as brainliest
ya its right but how to prove it
it is by the graph of cosA
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