Question

the value of sin ²0 = cos²0.
IF √3 tanO - 3 sin 0, 0#0 and 0is an acute angle, then Find the...​

Answer 1

Step-by-step explanation:

Since, θ is an acute angle. Therefore, θ=4π.

Substitute θ=4π in 3tan2θ+2sin2θ+cos2θ−1

3tan2(4π)+2sin2(4π)+cos2(4π)−1.                               (1)

Since, sin(4π)=cos(4π)=21  and tanθ=1.

Simplify equation (1).

⇒3(1)2+2(21)2+(21)2−12

⇒3+1+1/2

21−1

- 7/2

 

Thus, the value of 3tan2θ+2sin2θ+cos2θ−1 is 7/2

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