(i) (sin 0 + cos 0) (sec 0 + cosec 0) = 2 + sec 0 cosec 0
the zeroes are thita ​

1 thought on “(i) (sin 0 + cos 0) (sec 0 + cosec 0) = 2 + sec 0 cosec 0<br />the zeroes are thita ​”

1. Step-by-step explanation:

   (sin@+cos@)(1/cos@ +1/sin@)

   = (sin@+cos@)(sin@+cos@)/sin@cos@)

   =(sin@+cos@)^2*sec@cosec@

   =(sin^2@+cos^2@+2sin@cos@)*sec@cosec@

   =(1+2sin@cos@)*sec@cosec@

   =sec@cosec@+2

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