what is the value cosec2(90-theta)-tan2theta
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Let theta be a
Cosec^2(90-a)-tan2a
Sec^2a-tan^2a.......according to trigonometric identities
=1
vartikat5:
which identity is this??
that sec square - tan square is 1
plz mark as brain list
cosec^2 (90-a) how come this is sec.?
cosec(90-a) is sec
so cosec^2(90-a) is sec^2
understood??
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