4cos²theta-5sin²theta=5 then value of sec²theta + tan²theta is
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Answer:
4/5
Step-by-step explanation:
4 Cos²θ - 5 Sin²θ = 5
=> 4 Cos²θ = 5(1 + Sin²θ)
=> [1 + Sin²] / Cos²θ = 4/5
=> 1/Cos²θ + Sin²θ/Cos²θ = 4/5
=> sec²θ + tan²θ = 4/5
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