What is the value of ? :-
2 Cose (1 + tan o)
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ANSWER : 2
STEP BY STEP : 2 COS (1+tan)
1] 2Cosθ ( sec θ ). ....... [ 1+ tan θ = sec θ ]
2] 2Cos θ ×. 1 ÷ cos θ. ...... [ sec θ = 1 ÷ Cos θ ]
cosθ cos θ get cancelled
therefore 2 × 1
= 2
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