Question
If x tan 60° + cos 45° = sec 45° then the value of
x2 + 1 isSolution
x tan 60° + cos 45° = sec 45° x × √3 +1/√2 =√2 √3 x =√2-1/√2 x =1/√6 x2=1/6 x2+1 =1/6+1 =7/6.
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