Show that tan48° tan23°tan 42°tan67° = 1
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tan48 tan23 twn42 tan67
= cot42 cot67 tan42 tan67
= cot42 tan42 cot67 tan67
=1×1
=1
= cot42 cot67 tan42 tan67
= cot42 tan42 cot67 tan67
=1×1
=1
mohitparmar:
hmm then in tab also you can use hangout to call
[email protected] is my email id install hangout and make account using gmail and send me message in hangout by my emqil id
oh ok i will be ready
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