Question

If sin2A=tan245 where A is an acute angle then the value of A is

Answer 1

Answer:

90

Step-by-step explanation:

sin²A = tan²45

we know tan 45 =1

so tan²45 =(1)² = 1

=> sin²A = 1

Now we know that sin90 = 1

=> sin²90 = 1

#=> sin²A = sin²90

◇ A = 90