Question

please tell me this question..​

Answer 1

Answer:

3

Step-by-step explanation:

Your answer is 3

Very easy question .

(sin65° * sin25°/cos25°)²

= (cos25°* sin25°/cos25°)²

= (sin25°)²

Similarly, (cot25°/sec65°)²

= (sin25° * cos25°/sin25°)²

= (cos25°)²

Now ,

tan18° * tan72° = tan(90°-72°)*tan72°

= cot72° * tan72°

= 1

So, put above values in the equation and you will get :

1 + 2(1*1) = 3