Question

find
Sin² + cos² = ?​

Answer 1

Answer:

sure mate here's ur answer:

Step-by-step explanation:

3tanθ=1

⇒tanθ=31

⇒θ=60°

∴sin2θ−cos2θ=sin2θ−cos2θ

                               =(23)2−(21)2

                               =43−41

                               =21

Hence, the answer is 0.5.

hope it helps by the way these values are correct can u tell me

GOOD MORNING HAVE A NYC DAY

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Answer 2

Step-by-step explanation:

In ∆ACB,

• Angle C = 90°
• a, b, c be lengths of right angled triangle

So, by pythagoras theorem ; c² = a² + b²

Now, Sin theta = b/c

Cos theta = a/c

Sin² theta + Cos² theta

= (b/c)² + (a/c)²

= (b² + a²) / c²

= c² / c²

= 1

Hence proved...

Hey is that cutygirl answered before...

So cute..