Question

please help friends . you can send it one by one . i will copy down as much fast i could 1.if secant 34 = cosec (A-10) find A

2.prove that square root of 1- sin ^2 (90- theta ) + square root of 4-4sin^2 (90-theta)

3. if A,B,C are interior angles of a triangle ABC then show that sin (B+C/2)= Cos4/2.

4.if tan A = cotB , prove that A+B=90 degree

Answer 1

Answer:

PLEASE MENTION THE 2ND QUESTION CORRECTLY.

Step-by-step explanation:

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