Question

please solve both questions​

Answer 1

Answer:

Step-by-step:

2) it is given that sinA=cosA

so,sinA/cosA=1

since sinA/cosA=tanA

therefore,tanA=1

we know that tan45°=1

so,A=45°

we put A=45

we know that sin45=1/√2

2tan²A+sin²A+1=2×1+ 1/(√2)²+1=2+1/2+1=7/2

Hope it helps you