Question

If sinA= ⅗ and cos A = ⅘ find value of sin²A+ cos²A​

Answer 1

Answer:

sin sq. A+cos sq. A=1

Step-by-step explanation:

sinA=3/5

cosA=4/5

sin sq. A+cos sq. A=(3/5)sq.+(4/5)sq.

=9/25+16/25

=9+16/25

=25/25

=1

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Answer 2

Answer:

1

Step-by-step explanation:

by using identity