Question

find the value of 1) cot^2 60 + sin^2 45° + sin 30° + cos^2 90°




if you know then only answer
as fast as possible
sum of trigonometry chapter ​

Answer 1

Step-by-step explanation:

please check the attachment

Answer 2

Answer:

1 1/3

Step-by-step explanation:

• cot^2 60=(1/√3)^2 =1/3
• sin^2 45°=(1/√2)^2=1/2
• sin 30°=1/2
• cos^2 90°=0^2=0

therefore, 1/3+1/2+1/2+0=4/3=1 1/3