Question

If A = 45° , find the value of sinA + cosA​

Answer 1

$\boxed{\bf{\blue{\longrightarrow Answer}}}$

• Given A = 45°
• Sin 45° + Cos 45°
• $\frac{1}{ \sqrt{2}} + \frac{1}{ \sqrt{2}} = \frac{2}{ \sqrt{2} }$
• By rationalising denominator we get
• $2 \times \sqrt{2} \div 2$
• $= \sqrt{2}$

Answer 2

Step-by-step explanation:

hey mate!!

sin A (45°) and cos A(45°)= 1/√2

1/√2+ 1/√2

=2/√2

= √2×√2 /√2

= √2

hope it helps u!!!