Question

solve the first question mate ​

Answer 1

Step-by-step explanation:

here tan A= 1/√3 is given

we know that then À= 30°

now find sin A

so sin45°= 1/√2

and cos45°=1/√2

now we know that sum of all angle of triangle is 180 we have given angle B and angle A which is 90 and 45 respectively

now angle A +B +C = 180°

30°+90°+angle C = 180°

angle C = 180°-120°

60°

sin c = √3/2

cos c= 1/2

putting the values we get

$\frac{1}{\sqrt{2} } \times \frac{1}{2} + \frac{1}{ \sqrt{2} } \times \frac{ \sqrt{3} }{2}$

1/2√2+√3/2√2

4/4

1 hence proved

Answer 2

Answer:

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