Question

sin ² 34 + sin ² 56 + 2tan 18 tan 72 − tan ² 45

Answer 1

Answer:

$Heya$

Step-by-step explanation:

sin234∘+sin256∘+2tan18∘tan72∘−cot230∘

=sin234∘+sin2(90∘−34∘)+2tan18∘tan(90∘−18∘)−cot230∘

=sin234∘+cos234∘+2tan18∘cot18∘−(3​)2

=1+2tan18∘×tan18∘1​−3

=1+2−3

=0

Hope it helps

Answer 2

The answer is 0

Hope it helps....