Question

evaluate ques 5 pl solve it

Answer 1

Hi , there !!!


here is your answer !!!

( sin47° / cos43° )² + ( cos43° / sin47° ) ² - 4cos²45°


sin (90-47 ) = cos43°


and

Cos ( 90- 43) = sin 47


from this property on putting in given equation we get


( Cos43 °/ Cos43 °) ² + ( sin47° / sin47 ° )² - 4
Cos²45

=> 1² + 1² - 4 ( 1 / 2 )

2 - 2

= 0


hope it helps you !!!

thanks !!!

Ranjan kumar