Question

If tan A + cot A = 5; Find the value of tan2 A + cot2 A.​

Answer 1

Answer:

Step-by-step explanation:

tan2A = 2/5

So, tan2A + cot2A = 2/5 +5/2

=0.4 + 2.5

=2.9

Answer 2

You can select numbers from keyboard and long press to add powers like this x² or x³.

Step-by-step explanation:

we have ,

• tan A + cot A = 5

squaring both sides,

we have

• (tanA + cot A)² =5²

• tan²A + cot²A + 2tanA.cotA = 25

• tan²A + cot²A + 2 = 25 ..(tan×cot=1)

• tan²A + cot²A = 25-2 = 23