Question

please tell the answer​

Answer 1

Answer:

sin2thita + cos2 thita = 1

Step-by-step explanation:

square of 3/5 + square of 4/5

= 9/25+16/25

=25/25=1

Answer 2

Answer:

Step-by-step explanation:

$sin^{2}\theta + cos^{2}\theta\\\\= (\frac{3}{5})^{2} + (\frac{4}{5})^{2}\\\\= \frac{9}{25} + \frac{16}{25}\\\\= \frac{25}{25}\\\\= 1$

$sec^2\theta - tan^2\theta\\\\= (\frac{5}3)^2 - (\frac{4}3)^2\\\\= (\frac{25}9) - (\frac{16}9)\\\\= \frac{9}9\\\\= 1$